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24比36,1.8比0.4,
人气:324 ℃ 时间:2019-09-17 19:36:01
解答
24 :36
= (24÷12):(36÷12)
= 2 :3

1.8 :0.4
= (1.8×5):(0.4 ×5)
= 9 :2
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