求比值.60:42,4.8:7.5,3/8:9/20,3.5:8又2/5
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![求比值.60:42,4.8:7.5,3/8:9/20,3.5:8又2/5](/uploads/image/z/658724-68-4.jpg?t=%E6%B1%82%E6%AF%94%E5%80%BC.60%3A42%2C4.8%3A7.5%2C3%2F8%3A9%2F20%2C3.5%3A8%E5%8F%882%2F5)
求比值.60:42,4.8:7.5,3/8:9/20,3.5:8又2/5
求比值.60:42,4.8:7.5,3/8:9/20,3.5:8又2/5
求比值.60:42,4.8:7.5,3/8:9/20,3.5:8又2/5
60:42=10:7=10/7=1.4285
4.8:7.5=16:25=0.64
3/8:9/20=1/8:3/20=20/24=5/6=0.833
3.5:8又2/5=35:84=5:12=5/12=0.417