25+125x3.2 7.8x4分之三一2.6x4分之三 7分之三[(3分之二一5分之1)÷5分之
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解决时间 2021-03-02 12:44
- 提问者网友:自食苦果
- 2021-03-01 22:03
25+125x3.2 7.8x4分之三一2.6x4分之三 7分之三[(3分之二一5分之1)÷5分之
最佳答案
- 五星知识达人网友:躲不过心动
- 2021-03-01 23:09
25+125x3.2
=25+125×8×0.4
=25+1000×0.4
=25+400
=425
7.8x4分之三一2.6x4分之三
=(7.8-2.6)×3/4
=5.2×3/4
=3.9
7分之三×[(3分之二一5分之1)÷5分之一]
=3/7×[(2/3-1/5)×5]
=3/7×[2/3×5-1/5×5]
=3/7×10/3-3/7×1
=10/7-3/7
=1
10分之9÷[2分之1x(5分之6一10分之3)]
=9/10÷[1/2×6/5-1/2×3/10]
=9/10÷[6/10-3/20]
=9/10÷9/20
=2
=25+125×8×0.4
=25+1000×0.4
=25+400
=425
7.8x4分之三一2.6x4分之三
=(7.8-2.6)×3/4
=5.2×3/4
=3.9
7分之三×[(3分之二一5分之1)÷5分之一]
=3/7×[(2/3-1/5)×5]
=3/7×[2/3×5-1/5×5]
=3/7×10/3-3/7×1
=10/7-3/7
=1
10分之9÷[2分之1x(5分之6一10分之3)]
=9/10÷[1/2×6/5-1/2×3/10]
=9/10÷[6/10-3/20]
=9/10÷9/20
=2
全部回答
- 1楼网友:梦中风几里
- 2021-03-02 02:42
25+125x3.2=25+125x8x0.4=25+400=425
7.8x3/4一2.6x3/4=(7.8一2.6)x3/4=5.2x3/4=26/5x3/4=39/10=3.9
3/7x[(2/3一1/5)÷1/5]=3/7x5x(2/3一1/5)=15/7x(2/3一1/5)=10/7-3/7=1
9/10÷[1/2x(6/5一3/10)]
=9/10÷[1/2x(12/10一3/10)]
=9/10÷[1/2x9/10)
=9/10÷9/20
=9/10x20/9
=2
7.8x3/4一2.6x3/4=(7.8一2.6)x3/4=5.2x3/4=26/5x3/4=39/10=3.9
3/7x[(2/3一1/5)÷1/5]=3/7x5x(2/3一1/5)=15/7x(2/3一1/5)=10/7-3/7=1
9/10÷[1/2x(6/5一3/10)]
=9/10÷[1/2x(12/10一3/10)]
=9/10÷[1/2x9/10)
=9/10÷9/20
=9/10x20/9
=2
- 2楼网友:痴妹与他
- 2021-03-02 01:40
25+125×3.2=(25×4)×(125×0.8)=100×100=10000,
7.8×3/4-2.6×3/4=(7.8-2.6)×3/4=5.2×3/4=3.9,
3/7[(2/3-1/5)÷1/5]=3/7×2/3÷1/5-3/7×1/5÷1/5=10/7-3/7=7/7=1,
9/10÷[1/2×(6/5-3/10)]=9/10÷1/2÷(6/5-3/10)=9/10×2÷9/10=2
7.8×3/4-2.6×3/4=(7.8-2.6)×3/4=5.2×3/4=3.9,
3/7[(2/3-1/5)÷1/5]=3/7×2/3÷1/5-3/7×1/5÷1/5=10/7-3/7=7/7=1,
9/10÷[1/2×(6/5-3/10)]=9/10÷1/2÷(6/5-3/10)=9/10×2÷9/10=2
- 3楼网友:走死在岁月里
- 2021-03-02 00:29
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