5a^2b分之2a+10ab^2分之3b

5a^2b分之2a+10ab^2分之3b

2a/(5a²;b)+3b/(10ab²;)
=4ab/(10a²;b²;)+3ab/(10a²;b²;)
=7ab/(10a²;b²;)
=7/(10ab)
望採納