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24/5:1/5等于x:1/7.

1-5/24-7/24 =1-(5/24+7/24) =1-12/24 =12/24 =1/2

7.5x-4.5x=24 3x=24 x=24÷3 x=8

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

5/24+1/4=11/24

24/25-x+1/5=4/5 x=24/25+1/5-4/5 x=24/25-3/5 x=24/25-15/25 x=9/25 谢谢,请采纳

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