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计算题(有负数分数)~~计算高手来答,过程要写!过程一定要写~速速~1.(-3/2)/(3/4)/(-0.05)*(-7/4)+(-17/4)/(17/8)*(-9)2.(-1/63)/[(3/14)-(2/9)+(1/7)-(1/3)]+(-2/5)*(1/5)3.[(17
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计算题(有负数分数)~~计算高手来答,过程要写!过程一定要写~速速~
1.(-3/2)/(3/4)/(-0.05)*(-7/4)+(-17/4)/(17/8)*(-9)
2.(-1/63)/[(3/14)-(2/9)+(1/7)-(1/3)]+(-2/5)*(1/5)
3.[(17/20)+14.9]*[(-1/7)-(10/7)]/(11/56)
4.[(17/20)+14.9]*[(-1/7)-(10/7)]/(11/56)
5.(-1/7)-[0.7*(10/7)+(1/7)]/(-8)+42*(-2/3)-(-3/4)/0.125
6.(22/7)*[(22/7)-(22/3)]*(7/22)/(22/21)-7*3-(-4)/(-1/2)
7.5.6*(-10/7)+(-1/4)/(0.75)+(-56)/(-12+8)+(-2)*5
8.(2/7)/(-12/5)-(8/21)*(-7/4)-.025+(-0.12)*(25/12)/(-4/3)*1.6
1.(-3/2)/(3/4)/(-0.05)*(-7/4)+(-17/4)/(17/8)*(-9)
2.(-1/63)/[(3/14)-(2/9)+(1/7)-(1/3)]+(-2/5)*(1/5)
3.[(17/20)+14.9]*[(-1/7)-(10/7)]/(11/56)
4.[(17/20)+14.9]*[(-1/7)-(10/7)]/(11/56)
5.(-1/7)-[0.7*(10/7)+(1/7)]/(-8)+42*(-2/3)-(-3/4)/0.125
6.(22/7)*[(22/7)-(22/3)]*(7/22)/(22/21)-7*3-(-4)/(-1/2)
7.5.6*(-10/7)+(-1/4)/(0.75)+(-56)/(-12+8)+(-2)*5
8.(2/7)/(-12/5)-(8/21)*(-7/4)-.025+(-0.12)*(25/12)/(-4/3)*1.6
▼优质解答
答案和解析
1.=-3/2*4/3*(-20)*(-7/4)+(17/4)*8/17*(-9)
=-2*(-20)*(-7/4)+(-2)*(-9)
=-70+18
=-52
2.(-1/63)/(5/14-5/9)-2/25
=.(-1/63)/(-25/126)-2/25
=.(-1/63)*(-126/25)-2/25
= 2/25-2/25
=0
=-2*(-20)*(-7/4)+(-2)*(-9)
=-70+18
=-52
2.(-1/63)/(5/14-5/9)-2/25
=.(-1/63)/(-25/126)-2/25
=.(-1/63)*(-126/25)-2/25
= 2/25-2/25
=0
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