(33/2+1/5)+(2/3-12/17)-(1/5+5/17) (简便计算)
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(33/2+1/5)+(2/3-12/17)-(1/5+5/17) (简便计算)
![(33/2+1/5)+(2/3-12/17)-(1/5+5/17) (简便计算)](/uploads/image/z/2391699-3-9.jpg?t=%EF%BC%8833%2F2%2B1%2F5%EF%BC%89%2B%EF%BC%882%2F3-12%2F17%EF%BC%89-%EF%BC%881%2F5%2B5%2F17%EF%BC%89+%EF%BC%88%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%EF%BC%89)
(33/2+1/5)+(3/2-12/17)-(1/5+5/17)
=33/2+1/5+3/2-12/17-1/5-5/17
=(33/2+3/2)-(12/17+5/17)
=18-1
=17
再问: (2/3+1/5)+(2/3-12/17)-(1/5+5/17) (简便计算)对不起,我发错了
再答: (2/3+1/5)+(2/3-12/17)-(1/5+5/17) =2/3+1/5+2/3-12/17-1/5-5/17 =(2/3+2/3)-(12/17+5/17) =4/3-1 =1/3
=33/2+1/5+3/2-12/17-1/5-5/17
=(33/2+3/2)-(12/17+5/17)
=18-1
=17
再问: (2/3+1/5)+(2/3-12/17)-(1/5+5/17) (简便计算)对不起,我发错了
再答: (2/3+1/5)+(2/3-12/17)-(1/5+5/17) =2/3+1/5+2/3-12/17-1/5-5/17 =(2/3+2/3)-(12/17+5/17) =4/3-1 =1/3
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