48又7⼀8+57.125×1⼀2-1⼀2简便计算等于多少?

2025-04-07 04:30:09
推荐回答(2个)
回答1:

48又7/8+57.125x1/2-1/2
=(48x8+7)/8+56.125
=48+0.875+56.125
=48+57
=105

回答2:

48又7/8+57.125×1/2-1/2
=48又7/8+(57又1/8-1)×1/2
=48又7/8+56又1/8×1/2
=48又14/16+28又1/16
=76又15/16