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24/5:1/5等于x:1/7.

1/5=0.2 5-0.2=4.8 4.8*5=24

解: (1-2/5)x=24 3/5 x=24 x=24*5/3 x=40

7.5x-4.5x=24 3x=24 x=24÷3 x=8

解: 24/35 ÷x=1/5 1/5* x=24/35 x=24/35 *5 x=24/7

1: 5 × (5 - 1 ÷ 5) 2: 5 × (5 - (1 ÷ 5)) 3: (5 - 1 ÷ 5) × 5 4: (5 - (1 ÷ 5)) × 5

你好 (7-1)x(9-5) =6x4 =24

X-(7/16-5/24)等于7/24 解:X-11/48=7/24 X=7/24+11/48 X=25/48

5/7:15/24 =1/7:1:8 =8:7

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