括号3⼀7-1⼀5括号外乘以五等于多少

2024-12-15 16:27:40
推荐回答(2个)
回答1:

(3/7-1/5)×5
=3/7×5-1/5×5
=15/7-1
=8/7

回答2:

(3/7 - 1/5) x 5
= (15 - 7)/35 x 5
= 8/7