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2/3X5/6等于多少

解: 2/3×5/6 =(2×5)/(3×6) =10/18 =5/9

2/3x÷5/6=12 解:2/3x=12×5/6 2/3x=10 x=10÷2/3 x=15

5/9比2/3x等于6/5 解:2/3x*6=5/9*5 4x=25/9 x=25/9÷4 x=25/36

如图

2/9x=5/6x=15/4

1/5+2/3x=2.6 解: 2/3x=2.6-0.2 2/3x=2.4 x=24/10 x 2/3 x=8/5 x=1又3/5

2(3x+40=6-5(X-7) 6X+80等于6-5X-35 X等于-119/11

解: 根据题意,得: (3X+22)/8X=5/6 6(3X+22)=5X8X 18X+132=40X 132=40X-18X 22X=132 X=132/22 X=6

2/3x十(126-x)×5/6=93 2/3x+105-5/6x=93 5/6x-2/3x=105-93 1/6x=12 x=72

(7/9+2/3x5/6)÷4/5 (7/9+5/9)÷4/5 =13/9÷4/5 =13/9*5/4 =65/36

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