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( ):24=35/( )=0.625=( )%
人气:222 ℃ 时间:2020-03-23 20:10:29
解答
(15 ):24=35/(56 )=0.625=(62.5 )%
∵0.625=5/8
∴5/8=(5×3):(8×3)=15:24
5/8=(5×7)/(8×7)=35/56
0.625=(0.625×100)/100=62.5%
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