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1/5+4/5=()3/2÷6=()1/5x4/5=()4÷4/5=()

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5X4一5二5X() 解答: 5X4一5 =5X(3) =15 希望能帮到你

7/8*5/6÷5/8 =7/8*5/6*8/5 =7/8*4/3 =7/6 24÷0.4÷...

3/5x5/12÷3/2= =1/4x2/3 =1/6 8÷2/5x1/4 =8x5/2x...

=4×3÷5÷11÷2 =6/55 =3/35+2/35 =5/35 =1/7 =3×5×2÷2...

4/5x+1/5=4又3/5 解:4/5x=4又3/5-1/5 4/5x=4又2/5 x=4又2/...

因为21/3=7,所以括号里的数要使4/5*()-1/5=7,这样就有4/5*()=7+1/5,右边...

6/5x1/3+3/4()=32/5 2/5+3/4()=32/5 3/4()=32/5-2/5...

7/15

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