5a^2b分之2a+10ab^2分之3b

问题描述:

5a^2b分之2a+10ab^2分之3b

2a/(5a²b)+3b/(10ab²)
=4ab/(10a²b²)+3ab/(10a²b²)
=7ab/(10a²b²)
=7/(10ab)
望采纳