五分之三加二分之一乘七分之三加五分之二用简便方法计算
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简便计算=3/5+2/5+1/2×3/7=1+3/14=1又3/14
咨询记录 · 回答于2022-12-29
五分之三加二分之一乘七分之三加五分之二用简便方法计算
简便计算=3/5+2/5+1/2×3/7=1+3/14=1又3/14
9/5-5/8-9/16÷3/2，用简便方法计算
9/5-5/8-9/16÷3/2=9/5-5/8-9/16×2/3=9/5-(5/8+3/8)=9/5-1=4/5
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