4⼀5-括号1⼀8 1加⼀4括号。运算是怎么算的?

2025-05-13 18:48:32
推荐回答(1个)
回答1:

4/5-(1/8+1/4)
=4/5-(1/8+2/8)
=4/5-3/8
=32/40-15/40
=17/40