先拆分,在合并同分母的同类项请写出过程可以吗？A=238,B=375,C=465,D=587,E=627,F=7原式=A/B(C/D-E/F)+C/D(E/F-A/B)+E/F(A/B-C/D) =AC/BD-AE/BF+CE/DF-AC/BD+AE/BF-CE/DF =0