5/7:3/14 0.6:1/3 57:19 化简比
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5/7:3/140.6:1/357:19化简比5/7:3/140.6:1/357:19化简比5/7:3/140.6:1/357:19化简比5/7:3/14=10/30.6:1/3=9/557:19=3
5/7:3/14 0.6:1/3 57:19 化简比
5/7:3/14 0.6:1/3 57:19 化简比
5/7:3/14 0.6:1/3 57:19 化简比
5/7:3/14=10/3
0.6:1/3 =9/5
57:19 =3