35乘以138分之37加37乘以138分之34怎么简便运算?
问题描述:
35乘以138分之37加37乘以138分之34怎么简便运算?
答
35*(37/138)+37*(34/138)
=(37/138)*35+(37/138)*34
=(37/138)*(35+34)
=(37/138)*69
=37*(69/138)
=37*(1/2)
=37/2
.1楼我无力吐槽.