Sorry, I don't really understand the question. Coefficient is defined as the numeric part of 4y, where 4 is the coefficient and y is the variable. So then, you have a table with fields defined as:
Tbl_Coeffs
[X_Coeff] Double
[Y_Coeff] Double
where you have values of, say
4 & 6
2.3 & 9
Where your end result would be:
4x/6y
2.3x/9y
Is this what you're looking for? I don't think so, but the grammer is hard to follow. Sorry.