xiaodong03
花朵
共回答了14个问题采纳率:92.9% 举报
1.2/3×12.5%+1/8×1/3-0.125
=2/3×0.125+0.125×1/3-0.125×1
=(2/3+1/3-1)×0.125
=0
2.4.32+7/11-2/11-1.32
=(4.32-1.32)+(7/11-2/11)
=3+5/11
=3又5/11
3.126×3/125
=(125+1)×3/125
=125×3/125+1×3/125
=3+3/125
=3又3/125
4.124×3/125
=(125-1)×3/125
=125×3/125-1×3/125
=3-3/125
=2又122/125
5.42/5-0.3+2/7
=84/10-3/10+2/7
=81/10+2/7
=547/70
1年前
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