化简比,并求出比值.就一题.4:7分之5

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化简比,并求出比值.就一题.4:7分之5化简比,并求出比值.就一题.4:7分之5化简比,并求出比值.就一题.4:7分之54:5\7=4*7\5=28\5=53\528比54:5/7=4x7/5=28/

化简比,并求出比值.就一题.4:7分之5
化简比,并求出比值.就一题.
4:7分之5

化简比,并求出比值.就一题.4:7分之5
4:5\7
=4*7\5
=28\5
=5 3\5

28比5

4:5/7
=4x7/5
=28/5
=5.6