-0.125)×(-3又8分之1)+(0.125)×(﹣4又8分之7)等于多少?

2024-12-03 00:58:26
推荐回答(1个)
回答1:

-0.125×(-3又1/8)+0.125×(-4又7/8
=0.125×(3又1/8-4又7/8)
=0.125×(-1又3/4)
=1/8×(-7/8)
=-7/64