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(1)0.4-(-4/1)+6/1(2)3/1-(-6/5)+3/2(3)3/1+(-5/1)+1+3/2(4)27-18+(-7)-3

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解决时间 2021-03-09 15:02
  • 提问者网友:遮云壑
  • 2021-03-09 04:57
(1)0.4-(-4/1)+6/1(2)3/1-(-6/5)+3/2(3)3/1+(-5/1)+1+3/2(4)27-18+(-7)-32
最佳答案
  • 五星知识达人网友:夜余生
  • 2021-03-09 05:25
(1)0.4-(-4/1)+6/1
=0.4+1/4+1/6
=24/60+15/60+10/60
=49/60 (六十分之四十九)

(2)3/1-(-6/5)+3/2
=1/3+5/6+2/3
=2/6+5/6+4/6
=11/6(六分之十一)

(3)3/1+(-5/1)+1+3/2
=1/3-1/5+1+2/3
=5/15-3/15+15/15+10/15
=27/15(十五分之二十七)

(4)27-18+(-7)-32
=27-18-7-32
=-30

(5)0.5+(-4/1)-(2.75)+2/1
=0.5-0.25-2.75+0.5
=-2

(6)33.1-(-22.9)+(-10.5)
=33.1+22.9-10.5
=45.5

(7)(-8)-(-15)+(-9)-(-12)
=-8+15-9+12
=10

(8)-3/2+(-6/1)-(-4/1)-2/1
=-2/3-1/6+1/4-1/2
=-8/12-2/12+3/12-6/12
=-13/12(负十二分之十三)

(9)5/3-2/3+(-4/11)+4/13
=3/5-3/2-11/4+13/4
=12/20-30/20-55/20+65/20
=-8/20
=-2/5(负五分之二)
全部回答
  • 1楼网友:神也偏爱
  • 2021-03-09 06:57
题目里面的算式答案是156.1
内容里面的是9709363/8580
  • 2楼网友:一秋
  • 2021-03-09 06:39
(1)0.4-(-4/1)+6/1
=0.4+4/1+6/1
=5/2+12/3+12/2
=5/2+12/5
=60/24+60/25
=60/49
(2)3/1-(-6/5)+3/2
=3/1+6/5+3/2
=6/2+6/5+6/4
=6/11
(3)3/1+(-5/1)+1+3/2
=6/1-5/1+1+3/2
=30/5-30/6+30/30+30/20
=30/49
(4)27-18+(-7)-32
=27-18-7-32
=9-7-32
=2-32
=-30
(5)0.5+(-4/1)-(2.75)+2/1
=0.5-4/1-2.75+2/1
=0.5-0.25-2.75+0.5
=(0.5+0.5)-(0.25+2.75)
=1-3
=-2
(6)33.1-(-22.9)+(-10.5)
=33.1+22.9-10.5
=56-10.5
=45.5
(7)(-8)-(-15)+(-9)-(-12)
=-8+15-9+12
=7-9+12
=-2+12
=10
(8)-3/2+(-6/1)-(-4/1)-2/1
=-3/2-6/1+4/1-2/1
=-12/8-12/2+12/3-12/6
=12/(-8-2+3-6)
=-12/13
(9)5/3-2/3+(-4/11)+4/13
=5/3-2/3-4/11+4/13
=5/3-2/3-(4/11-4/13)
=5/3-2/3-4/2
=5/3-(2/3+2/1)
=5/3-2
=5/3-5/10
=-5/7
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