Converting Decimals to Fractions

[robbie9]

I am using Access to price out Corian vanity tops. Its working great, except that I need to input thye sizes in Decimals..Is there a way I can use fractions?? I know in Excel there is a command that I can change to convert it to a fraction..Is there a way in Access??

 

[R. Hicks]

I have a function that will convert a decimal number into a fraction, but the output is a string, not a number. The output is accurate to 1/128th of an inch.

'*******************Begin Code******************
Public Function DecimalToFraction(x)
Dim Temp As String
Dim Fixed As Double

If (VarType(x) < 2) Or (VarType(x) > 6) Then
DecimalToFraction = x
Else
x = Abs(x)
Fixed = Int(x)
If Fixed > 0 Then
Temp = str(Fixed)
End If
Select Case x - Fixed
Case Is < 0.007813
If Fixed > 0 Then
Temp = Temp
Else
Temp = str(x)
End If
Case 0.007813 To 0.023438
Temp = Temp + " 1/64"
Case 0.023438 To 0.039063
Temp = Temp + " 1/32"
Case 0.039063 To 0.054688
Temp = Temp + " 3/64"
Case 0.054688 To 0.070313
Temp = Temp + " 1/16"
Case 0.070313 To 0.085938
Temp = Temp + " 5/64"
Case 0.085938 To 0.101563
Temp = Temp + " 3/32"
Case 0.101563 To 0.117188
Temp = Temp + " 7/64"
Case 0.117188 To 0.132813
Temp = Temp + " 1/8"
Case 0.132813 To 0.148438
Temp = Temp + " 9/64"
Case 0.148438 To 0.164063
Temp = Temp + " 5/32"
Case 0.164063 To 0.179688
Temp = Temp + " 11/64"
Case 0.179688 To 0.195313
Temp = Temp + " 3/16"
Case 0.195313 To 0.210938
Temp = Temp + " 13/64"
Case 0.210938 To 0.226563
Temp = Temp + " 7/32"
Case 0.226563 To 0.242188
Temp = Temp + " 15/64"
Case 0.242188 To 0.257813
Temp = Temp + " 1/4"
Case 0.257813 To 0.273438
Temp = Temp + " 17/64"
Case 0.273438 To 0.289063
Temp = Temp + " 9/32"
Case 0.289063 To 0.304688
Temp = Temp + " 19/64"
Case 0.304688 To 0.320313
Temp = Temp + " 5/16"
Case 0.320313 To 0.335938
Temp = Temp + " 21/64"
Case 0.335938 To 0.351563
Temp = Temp + " 11/32"
Case 0.351563 To 0.367188
Temp = Temp + " 23/64"
Case 0.367188 To 0.382813
Temp = Temp + " 3/8"
Case 0.382813 To 0.398438
Temp = Temp + " 25/64"
Case 0.398438 To 0.414063
Temp = Temp + " 13/32"
Case 0.414063 To 0.429688
Temp = Temp + " 27/64"
Case 0.429688 To 0.445313
Temp = Temp + " 7/16"
Case 0.445313 To 0.460938
Temp = Temp + " 29/64"
Case 0.460938 To 0.476563
Temp = Temp + " 15/32"
Case 0.476563 To 0.492188
Temp = Temp + " 31/64"
Case 0.492188 To 0.507813
Temp = Temp + " 1/2"
Case 0.507813 To 0.523438
Temp = Temp + " 33/64"
Case 0.523438 To 0.539063
Temp = Temp + " 17/32"
Case 0.539063 To 0.554688
Temp = Temp + " 35/64"
Case 0.554688 To 0.570313
Temp = Temp + " 9/16"
Case 0.570313 To 0.585938
Temp = Temp + " 37/64"
Case 0.585938 To 0.601563
Temp = Temp + " 19/32"
Case 0.601563 To 0.617188
Temp = Temp + " 39/64"
Case 0.617188 To 0.632813
Temp = Temp + " 5/8"
Case 0.632813 To 0.648438
Temp = Temp + " 41/64"
Case 0.648438 To 0.664063
Temp = Temp + " 21/32"
Case 0.664063 To 0.679688
Temp = Temp + " 43/64"
Case 0.679688 To 0.695313
Temp = Temp + " 11/16"
Case 0.695313 To 0.710938
Temp = Temp + " 45/64"
Case 0.710938 To 0.726563
Temp = Temp + " 23/32"
Case 0.726563 To 0.742188
Temp = Temp + " 47/64"
Case 0.742188 To 0.757813
Temp = Temp + " 3/4"
Case 0.757813 To 0.773438
Temp = Temp + " 49/64"
Case 0.773438 To 0.789063
Temp = Temp + " 25/32"
Case 0.789063 To 0.804688
Temp = Temp + " 51/64"
Case 0.804688 To 0.820313
Temp = Temp + " 13/16"
Case 0.820313 To 0.835938
Temp = Temp + " 53/64"
Case 0.835938 To 0.851563
Temp = Temp + " 27/32"
Case 0.851563 To 0.867188
Temp = Temp + " 55/64"
Case 0.867188 To 0.882813
Temp = Temp + " 7/8"
Case 0.882813 To 0.898438
Temp = Temp + " 57/64"
Case 0.898438 To 0.914063
Temp = Temp + " 29/32"
Case 0.914063 To 0.929688
Temp = Temp + " 59/64"
Case 0.929688 To 0.945313
Temp = Temp + " 15/16"
Case 0.945313 To 0.960938
Temp = Temp + " 61/64"
Case 0.960938 To 0.976563
Temp = Temp + " 31/32"
Case 0.976563 To 0.992188
Temp = Temp + " 63/64"
Case Is > 0.992188
Temp = str(Int(x) + 1)
End Select

DecimalToFraction = Temp

End If
End Function
'*******************End Code******************

HTH
RDH



[This message has been edited by R. Hicks (edited 02-11-2001).]

 

[robbie9]

Now if I am reading it right, DecimalToFraction if the name of the field..So I need to change it to my field name?? My field name is Length..

 

[R. Hicks]

I guess I should have explained how to use the function.

Copy the function from the earlier post into a new module. Give this module a name like Fraction. You can then use the function as you would any other built-in function.

I'm not sure where you need tis info. So here are a couple of examples:

To see conversion on a form, insert a txtbox to receive the info on the form. Then for the control source of the txtbox put:

=DecimalToFraction([Length])
(where "Length" is the name of the txtbox that contains the Decimal equivalent)

If you need to convert the Decimal in a Query, use an expression in the query:

Exp1:

ecimalToFraction([Length])
(where "Length" is the field in the query that contains the Decimal equivalent)

Basically you use the function by substituting "x" in the function's argument for your decimal value reference.
DecimalToFraction(x)

HTH
RDH

[This message has been edited by R. Hicks (edited 02-12-2001).]

 

[robbie9]

Now you really confused me.. So I don't have to change anything in the Formula?? After I input the Length, How does the formula get the Number??? Am I calling it up in the wrong spot?? or Do I need to change X to something??

 

[R. Hicks]

It all depends on where the function is used. If your db is in Access 97, and not sensitive data, email a copy of it to me. Also let know where you want the fraction to show. I will see if I can give you a hand. If not, try to explain where you want the fraction to show (form, report...txtbox...ect) maybe I can build a sample db to incorporate the function to show you how to use it.

HTH
RDH

 

[robbie9]

The DB is written in Access 2000.. So I can send it to you if you can use it.. What I am trying to do is, when I am Pricing the VAnity top, The only way I can Calculate the price is buy inputing the size with a Decimal (22.5 43.5 ect..) The problem is when the worksheet gets printed out, The guys in the shop have a tough time with the Decimals..We don't exactly have Rocket Scientists in the shop..So I would like it when I print out the sheet, it converts it to a fraction...

 

[R. Hicks]

Try saving the db as Access 97 (Previous Version). Then email it to me, I should be able to read the db well enough to give you the answer you need.

RDH

 

[robbie9]

I tried to send the Base to you, and it keeps coming back.. I got you email address off of here..Do I have the right one??

 

[R. Hicks]

Try either of thr following Email addresses:

ricky@athree.com

rdhicks@mindspring.com

HTH
RDH



[This message has been edited by R. Hicks (edited 02-19-2001).]

 

[plog]

Now all I need is a way to convert kilograms into stones and pounds!

I was going to wait until 2037 to reply, but here you go:

Pounds = 2.20462 * Kilograms

Stones = 0.157473 * Kilograms

 

[Deleted member 147267]

You are measuring in fractions, yes? Or does your measuring device measure in decimal? If not, then isn't it far easier to input the data as measured (shop guys will like that) and convert to decimal for pricing? Isn't it far easier to divide 11 by 16 and get 0.6875 than it is to do all this work to get 11/16 out of .6875?

 

[Deleted member 147267]

The blind leading the blind?

 

[Galaxiom]

This very old thread discussed entering the data as fractions.

 

[P_D]

I have a function that will convert a decimal number into a fraction, but the output is a string, not a number. The output is accurate to 1/128th of an inch.

'*******************Begin Code******************
Public Function DecimalToFraction(x)
Dim Temp As String
Dim Fixed As Double

If (VarType(x) < 2) Or (VarType(x) > 6) Then
DecimalToFraction = x
Else
x = Abs(x)
Fixed = Int(x)
If Fixed > 0 Then
Temp = str(Fixed)
End If
Select Case x - Fixed
Case Is < 0.007813
If Fixed > 0 Then
Temp = Temp
Else
Temp = str(x)
End If
Case 0.007813 To 0.023438
Temp = Temp + " 1/64"
Case 0.023438 To 0.039063
Temp = Temp + " 1/32"
Case 0.039063 To 0.054688
Temp = Temp + " 3/64"
Case 0.054688 To 0.070313
Temp = Temp + " 1/16"
Case 0.070313 To 0.085938
Temp = Temp + " 5/64"
Case 0.085938 To 0.101563
Temp = Temp + " 3/32"
Case 0.101563 To 0.117188
Temp = Temp + " 7/64"
Case 0.117188 To 0.132813
Temp = Temp + " 1/8"
Case 0.132813 To 0.148438
Temp = Temp + " 9/64"
Case 0.148438 To 0.164063
Temp = Temp + " 5/32"
Case 0.164063 To 0.179688
Temp = Temp + " 11/64"
Case 0.179688 To 0.195313
Temp = Temp + " 3/16"
Case 0.195313 To 0.210938
Temp = Temp + " 13/64"
Case 0.210938 To 0.226563
Temp = Temp + " 7/32"
Case 0.226563 To 0.242188
Temp = Temp + " 15/64"
Case 0.242188 To 0.257813
Temp = Temp + " 1/4"
Case 0.257813 To 0.273438
Temp = Temp + " 17/64"
Case 0.273438 To 0.289063
Temp = Temp + " 9/32"
Case 0.289063 To 0.304688
Temp = Temp + " 19/64"
Case 0.304688 To 0.320313
Temp = Temp + " 5/16"
Case 0.320313 To 0.335938
Temp = Temp + " 21/64"
Case 0.335938 To 0.351563
Temp = Temp + " 11/32"
Case 0.351563 To 0.367188
Temp = Temp + " 23/64"
Case 0.367188 To 0.382813
Temp = Temp + " 3/8"
Case 0.382813 To 0.398438
Temp = Temp + " 25/64"
Case 0.398438 To 0.414063
Temp = Temp + " 13/32"
Case 0.414063 To 0.429688
Temp = Temp + " 27/64"
Case 0.429688 To 0.445313
Temp = Temp + " 7/16"
Case 0.445313 To 0.460938
Temp = Temp + " 29/64"
Case 0.460938 To 0.476563
Temp = Temp + " 15/32"
Case 0.476563 To 0.492188
Temp = Temp + " 31/64"
Case 0.492188 To 0.507813
Temp = Temp + " 1/2"
Case 0.507813 To 0.523438
Temp = Temp + " 33/64"
Case 0.523438 To 0.539063
Temp = Temp + " 17/32"
Case 0.539063 To 0.554688
Temp = Temp + " 35/64"
Case 0.554688 To 0.570313
Temp = Temp + " 9/16"
Case 0.570313 To 0.585938
Temp = Temp + " 37/64"
Case 0.585938 To 0.601563
Temp = Temp + " 19/32"
Case 0.601563 To 0.617188
Temp = Temp + " 39/64"
Case 0.617188 To 0.632813
Temp = Temp + " 5/8"
Case 0.632813 To 0.648438
Temp = Temp + " 41/64"
Case 0.648438 To 0.664063
Temp = Temp + " 21/32"
Case 0.664063 To 0.679688
Temp = Temp + " 43/64"
Case 0.679688 To 0.695313
Temp = Temp + " 11/16"
Case 0.695313 To 0.710938
Temp = Temp + " 45/64"
Case 0.710938 To 0.726563
Temp = Temp + " 23/32"
Case 0.726563 To 0.742188
Temp = Temp + " 47/64"
Case 0.742188 To 0.757813
Temp = Temp + " 3/4"
Case 0.757813 To 0.773438
Temp = Temp + " 49/64"
Case 0.773438 To 0.789063
Temp = Temp + " 25/32"
Case 0.789063 To 0.804688
Temp = Temp + " 51/64"
Case 0.804688 To 0.820313
Temp = Temp + " 13/16"
Case 0.820313 To 0.835938
Temp = Temp + " 53/64"
Case 0.835938 To 0.851563
Temp = Temp + " 27/32"
Case 0.851563 To 0.867188
Temp = Temp + " 55/64"
Case 0.867188 To 0.882813
Temp = Temp + " 7/8"
Case 0.882813 To 0.898438
Temp = Temp + " 57/64"
Case 0.898438 To 0.914063
Temp = Temp + " 29/32"
Case 0.914063 To 0.929688
Temp = Temp + " 59/64"
Case 0.929688 To 0.945313
Temp = Temp + " 15/16"
Case 0.945313 To 0.960938
Temp = Temp + " 61/64"
Case 0.960938 To 0.976563
Temp = Temp + " 31/32"
Case 0.976563 To 0.992188
Temp = Temp + " 63/64"
Case Is > 0.992188
Temp = str(Int(x) + 1)
End Select

DecimalToFraction = Temp

End If
End Function
'*******************End Code******************

HTH
RDH



[This message has been edited by R. Hicks (edited 02-11-2001).]

I plugged your code into an Access2019 db, and followed your instructions...it works beautifully, THANKS!

 

[gemma-the-husky]

It's 20 year old code. Amazing stuff, code. Doesn't wear out when used correctly.

 

[MarkK]

Here's shorter code...

Function GetFraction(ByVal Number As Single, Denominator As Integer) As String
    Dim i As Integer
    
    Number = RoundToNearest(Number, 1 / Denominator)
    
    If Number <= 0 Or Number >= 1 Then
        Err.Raise 5, "GetFraction()", "Number must be between zero and one"
    Else
        For i = 1 To Denominator - 1
            If CInt(i / Number) = i / Number Then
                GetFraction = i & "/" & i / Number
                Exit For
            End If
        Next
    End If
End Function

Function RoundToNearest(Number As Single, Optional RoundTo As Single = 1)
    RoundToNearest = CLng(Number / RoundTo) * RoundTo
End Function

You can specify precision with the denominator parameter.

 

[arnelgp]

another decimal_inch to fraction_inch.
it's decimal inch or is it?

 

[MajP]

As @MarkK pointed out there is no need for a table or a select case. This can be solved in closed form using the Euclidean Algorithm for finding greatest common divisor. There are several forms of the algorithm. There is a subtraction method, division method, and the recursive which is shown. The only trick is you have to define the accuracy (precision to which to report your denominator).

Here is another version with a couple of additional features. You can do compound values with whole numbers and fraction parts. Also you can return the whole portion, numerator, and denominator instead of simply a string.

Public Type Fraction
  WholeNumber As Long
  Numerator As Long
  Denominator As Long
End Type
Public Function GetFraction(ByVal TheDecimal As Double, Optional ByVal Accuracy As Double = 0.0078125) As Fraction
  'Lets go 10 places
  Const places = 1000000000
  Dim GCD As Long
  Dim decimalPart As Double
  GetFraction.WholeNumber = Fix(TheDecimal)
  decimalPart = TheDecimal - GetFraction.WholeNumber
  decimalPart = Accuracy * CLng(decimalPart / Accuracy)
  GetFraction.Numerator = Fix(decimalPart * places)
  GetFraction.Denominator = places
  GCD = GetGCD(GetFraction.Numerator, GetFraction.Denominator)
  GetFraction.Numerator = GetFraction.Numerator / GCD
  GetFraction.Denominator = GetFraction.Denominator / GCD
End Function
Public Function GetGCD(ByVal a As Long, ByVal b As Long) As Long
    Do While a <> b
        If a > b Then
            a = a - b
        Else
            b = b - a
        End If
    Loop
    GetGCD = a
End Function
Public Function GetFractionToString(TheDecimal As Double, Optional Accuracy As Double = 0.0078125) As String
  Dim TheFraction As Fraction
  TheFraction = GetFraction(TheDecimal, Accuracy)
  GetFractionToString = CStr(TheFraction.Numerator) & "/" & CStr(TheFraction.Denominator)
  If TheFraction.WholeNumber <> 0 Then GetFractionToString = TheFraction.WholeNumber & " " & GetFractionToString
End Function

Public Sub tet()
 Dim x As Double
 Dim acc As Double
 acc = 1 / 8
 x = 3 + 1 / 2
 Debug.Print GetFractionToString(x, acc)
End Sub

 

[arnelgp]

As @MarkK pointed out there is no need for a table or a select case.

this won't do, on your test try x=3.021
you'll end up in never ending loop.

the original Function on this thread is about converting decimal inches
to fraction equivalent. not any number system. that's is why there is 1/64", etc.
that is why my sample is to put the data in table.

getting back to the Test sub, it is still running...