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列竖式计算2/3+(1/2%1/4)

2/3+(1/2-1/4)=2/3+(2/4-1/4)=2/3+1/4=8/12+3/12=11/12

列竖式计算x+2/3=4/5解:x=4/5-2/3x=12/15-10/15x=2/15

(1+1/3+1/4)*(1/3+1/4+1/5)-(1+1/3+1/4+1/5)*(1/3+1/4)=(1+1/3+1/4)*(1/3+1/4+1/5)-(1/3+1/4+1/5)*(1/3+1/4)-(1/3+1/4)=(1/3+1/4+1/5)*(1+1/3+1/4-1/3-1/4)-(1/3+1/4)=(1/3+1/4+1/5)-(1/3+1/4)=1/5

(2/9)÷(3/4) =(2/9)*(4/3) =8/27. 谢谢采纳.

列竖式计算2/5+1/3+3/5=2/5+3/5+1/3=1+1/3=1又1/3

解:1.2/3=0.4 0. 4 ------------- 3 / 1. 2 1. 2 ---------- 0

列竖式计算.77x134=77*134=10318 有用请采纳.记得给问豆啊!

2/3+4/5-(3/5-1/3)=2/3+4/5-3/5+1/3=(2/3+1/3)+(4/5-3/5)=1+1/5=1又1/5

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