(-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
1.2×A=B÷3/4=C×125%=D÷60%,ABCD各是多少
(4/3-1/2)÷(4-1/4)=?有没有简便算法?
1/2 +(1/3+2/3)+(1/4+2/4+3/4)+(1/5+2/5+3/5+4/5)+……+(1/60+2/60+3/60+……+58/60+59/60)
方程:①x+y=60÷2 ②y-x=60÷3(详细计算过程)
只要结果!!!! 8/15*5/6*4/9 =? 5/8÷35÷5/7=? (1/3+1/4-1/6)*24=? 48又6/7÷6=?
(8/9+3/7+6/11)÷(3/11+5/7+4/9)
1÷2+2÷3+3÷4+┅┅+(n-1÷n)
4÷3〔(1÷4)x-1〕-2-x=2
1/2+1/3+2/3+1/4+2/4+3/4+......+1/60+2/60+......+59/60
方程4÷2/3X=2/5的解是多少?