(0.75减去16分之3)乘以(9分之2加上3分之2 )怎样简算

问题描述:

(0.75减去16分之3)乘以(9分之2加上3分之2 )怎样简算

通分最好

=(3/4-3/16)×(2/9+2/3)
=(12/16-3/16)×(2/9+6/9)
=9/16×8/9
=1/2