(-5/12)×8/15×1/2×(-2/3);(-1)×(-5/4)×8/15×3/2×(-2/3)×0×(-1)还有一题:18-6÷(-2)×(-1/3)
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(-5/12)×8/15×1/2×(-2/3);(-1)×(-5/4)×8/15×3/2×(-2/3)×0×(-1)还有一题:18-6÷(-2)×(-1/3)(-5/12)×8/15×1/2×(-2/
(-5/12)×8/15×1/2×(-2/3);(-1)×(-5/4)×8/15×3/2×(-2/3)×0×(-1)还有一题:18-6÷(-2)×(-1/3)
(-5/12)×8/15×1/2×(-2/3);(-1)×(-5/4)×8/15×3/2×(-2/3)×0×(-1)
还有一题:18-6÷(-2)×(-1/3)
(-5/12)×8/15×1/2×(-2/3);(-1)×(-5/4)×8/15×3/2×(-2/3)×0×(-1)还有一题:18-6÷(-2)×(-1/3)
(-5/12)×8/15×1/2×(-2/3)
=-2/9×(-2/3)
=4/9
(-1)×(-5/4)×8/15×3/2×(-2/3)×0×(-1)=0
18-6÷(-2)×(-1/3)
=18+3×(-1/3)
=18-1
=17
-12/5*15/8*(-2/3)*(-3/2)
解方程1/2X-(2/5×15/8)=12
【8/15+(5/12-2/5)】*120
6道分数脱式计算,能简算的要简算,(1)8/9×3/8+7/9(2)8/15-7/15×5/7(3)11/12×5/7+11/12×2/7(4)7/8×15+7/8(5)(5+5/8)×3/5(6)12×(2/11-1/12)×11
(-5/12)×8/15×1/2×(-2/3);(-1)×(-5/4)×8/15×3/2×(-2/3)×0×(-1)还有一题:18-6÷(-2)×(-1/3)
找规律 规律是什么?13-9=3+(1) 11-8=1+(2)15-9=5+(1) 15-8=5+(2)12-9=2+(1) 14-8=4+(2)
(-5)-(-1/2)+7 -7/3 1/3+(-6/5)-(-1/2)-2/3(-1/3)-15+(2/3) (-12)-(-6/5)+(-8)-7/1033.1-(-22.9)+(-10.5) (-8)-(-15)+(-9)-(-12)
3×(2/15+1/12)-2/5,能简算吗
①(-3)*(-5/6)*(-9/5)*1/4 ② 5/12 - 8/15 * 1/4 *(-3/2) ③(-5)* 8 *(-0.25)*(-7)
(-5/12)*8/15*1/2*(-2/3) 简便方法计算,脱式计算(“/”是分数线)
(2*5*8+4*10*16+6*15*24)除以(1*4*5+2*8*10+3*12*15)
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)
3/15+5/8+3/8+8/13= 12-(2/3-1/2)=
(-12分之5)×15分之8×2分之1×(-3分之2)等于多少过程答案都要
2/5+1/4+3/8 11/9-2/7-5/7 11/25+(1/12+14/25) 15/18-(15/18-11/12) 简算,急2/5+1/4+3/8 11/9-2/7-5/7 11/25+(1/12+14/25)15/18-(15/18-11/12)
简便计算 【15分之8-(12分之7—5分之2)】×15分之15
(1*3*5+2*6*10+3*9*15+4*12*20+5*15*25)/(1*2*3+2*4*6+3*6*9+4*8*12+5*10*15)等于多少?
48*(7/12+5/600)除以2/3 1/8+(1/8+1/30)*1548*(7/12+5/600)除以2/3 1/8+(1/8+1/30)*15