-72×(1/4-5/9+12/7)÷(-2)要过程
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-72×(1/4-5/9+12/7)÷(-2)要过程
-72×(1/4-5/9+12/7)÷(-2)要过程
-72×(1/4-5/9+12/7)÷(-2)要过程
=36*1/4-36*5/9+36*7/12 12/7是不是应该7/12呢
=9-30+21
=0
=36*1/4-36*5/9+36*12/7 这个是12/7 的
=9-30+61又5/7
=40又5/7
-72×(1/4-5/9+12/7)÷(-2)
-72×(1/4-5/9+12/7)÷(-2)要过程
(-72)x{1|4-5|9+7|12}除以(-2)
-72*(1/4-5/9+7/12)/(-2)
-72*(1/4-5/9+7/12)/(-2)
-72*(1/4-5/9+7/12)/(-2)
递等式计算6.4×5/2+5/2×(1-40%)72÷9/8-35×5/4 12/5+(6/5-12/1)÷16/9 20-(11.9-8.4×7/1) ( / 代表几分之几)
简算:(5/9-7/8+5/18) ÷1/72 6÷(3/4-2/3+1/5)简算:(5/9-7/8+5/18) ÷1/72 6÷(3/4-2/3+1/5)
12×3/8÷3/4 (1/4+2/9)×72 7/15+8/15×15 3-2/3÷4/5-1/6 (1/3+1/2)÷(1-3/8)
简算要过程4/7÷9+3/7×1/9 [1-(1/8+0.25)]÷5/12=?
要过程4/7÷9+3/7×1/9 [1-(1/8+0.25)]÷5/12=?
4/7X÷1/5=12 .X÷3/5=25/724/7X÷1/5=12 .X÷3/5=25/72 X+1/4X=25
1+2+3+4+5+6+7+8+9+10÷11÷12×0=?
4/15+3/14÷1/6+5/7[7/12-(3/4÷9)]×5/6
2/7+1/2÷4/5+3/8 4-(5/4-2/3*5/14) 1/2÷5/8*3/5+1/25 15/16÷(5/12÷5/8+3/8)8/3÷(4/5-8/15) 5/9*4/15-5/9*1/15 (5/7-1/2)*7/3-1/2 3.28*3/4+1/72*3/4解方程x-1/8=3/4÷3/8 2x-1/2=6/5 4又1/5+3x=8又1/2
连问两次.1.{(7又1/13+2.4÷6又2/5)+2又5/8}x52.{(10.75-4又11/12)x2又7/11}÷{(1.125+1/12)÷(2.25÷10又10/11)}3.1/(4x7)+1/(7x10).+1/(100x103)4.1-5/6+7/12-9/20+11/30-13/42+15/56-17/72+19/905.(46-1/7)x1
34/35-(4/15+2/5) 2-3/8÷7/16-1/7 (5/12+1/9-3/8)×72简便计算
4/25÷2/5 5/12÷7/9 5/7÷5/8 12/13×4/54/25÷2/5 5/12÷7/9 5/7÷5/8 12/13×4/5 谢谢啦!