求下面各比的比值,7.2:18 5/12:5 2:1/20 0.6:6/7

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求下面各比的比值,7.2:185/12:52:1/200.6:6/7求下面各比的比值,7.2:185/12:52:1/200.6:6/7求下面各比的比值,7.2:185/12:52:1/200.6:6

求下面各比的比值,7.2:18 5/12:5 2:1/20 0.6:6/7
求下面各比的比值,7.2:18 5/12:5 2:1/20 0.6:6/7

求下面各比的比值,7.2:18 5/12:5 2:1/20 0.6:6/7