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