5⼀7×16×21⼀5怎么简便运算?

2024-11-27 07:46:09
推荐回答(3个)
回答1:

7与21相约得3,分子中的5与分母的5相约,所以最后答案为3x16=48

回答2:

解:
5/7×16×21/5
=5/7×21/5×16
=3×16
=48

回答3:

5/7×21/5×16
=3*16=48