How the Calculator Works The calculator above uses a computer algebra system to symbolically calculate the partial fraction composition. Because the calculation is symbolic, it preserves exact values rather than making approximations like a numerical method/routine would. It does the symbolic calculations very quickly. Fractions division calculator uses two proper or improper fractions, `a/b` and `c/d` such that `b,c,d e0`, and calculates the quotient for `a/b` divided by `c/d`. It is an online tool to find the quotient in the simplest form of two proper or improper fractions.