(-60)÷(3/4+5/6-7/12+11/15)=?

来源:百度知道 编辑:UC知道 时间:2024/09/21 23:28:23

首先对括号后面的通分,然后做加减合并
(-60)÷(3/4+5/6-7/12+11/15)=?
=(-60)÷(45/60+50/60-35/60+44/60)
=(-60)÷(104/60)
=(-60)×(60/104)
=-3600/104
=-450/13

(-60)÷(3/4+5/6-7/12+11/15)
=(-60)÷(45/60+50/60-35/60+44/60)
=(-60)÷(104/60)
=(-60)×(60/104)
=-450/13

(-60)÷(3/4+5/6-7/12+11/15)=?
=(-60)÷(45/60+50/60-35/60+44/60)
=(-60)÷(104/60)
=(-60)×(60/104)
=-3600/104
=-450/13

(-60)÷(3/4+5/6-7/12+11/15)
=-60÷((9+10-7)/12+11/15)
=-60÷(1+11/15)
=-60÷(26/15)
=-60*15÷26
=-450/13

3/4 + 5/6 - 7/12 + 11/15 =
9/12 + 10/12 - 7/12 +11/15 = 1又11/15 =26/15
-60 除以 26/15 = -60 *15/26 =450/13 = 34又8/13