3/4:7/2 化简比,1/2:2/3 5/7:25/49

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3/4:7/2 化简比,1/2:2/3 5/7:25/49
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3/4:7/2 化简比,1/2:2/3 5/7:25/49
3/4:7/2 化简比,
1/2:2/3 5/7:25/49

3/4:7/2 化简比,1/2:2/3 5/7:25/49
3/4:7/2
同乘以4
=3:14
1/2:2/3
同乘以6
=3:4
5/7:25/49
同乘以49
=35:25
同除以5
=7:5