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x÷1/4=5/12÷3/4

x÷1/4=5/12÷3/4 4x=5/9 x=5/9÷4 x=5/36

x-(1/4+1/3)=5/12 x-7/12=5/12 x=7/12+5/12 x=1

x一(1/3一1/4)=5/12 解:x-1/12=5/12 x=5/12+1/12 x=1/

x+5/12=3/4 x=3/4-5/12 x=1/3 x-3/20=4/15 x=3/20

5/12x-1/3=-1/4 5/12x×12-1/3×12=-1/4×12 5x-4=-3

4/5-5/12+1/3的和等于60分之43

12*(3/4 +1/3 - 5/6)=12*(9+4-10)/12 =3

下面分数是上面分数的一半,x=24。

x-1/4(1-3/2)-1/3(2-x/4)=2+35/24x 乘以24得 24x-6(1-3/2

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