(1)求比值 80:24 0.5:0.2 0.15:21 36:18 13:91 3:12 1.01:101 21:24 36:72 20:40 89.5:2 10.5:21 3.14:28.26 41.23:4123 15:0.12 10:120 123:3 65:13 3:1 42:54 (2)化简比3:8 5:12 0.25:4 23:46 12:2.8 90:72 2.1:7.2 0.21:3.5 34:1。7 45:240 16:3.212:120 24:2.4 6.5:13 28:7.2 36:48 29:5556:2.8 45:4.8 3.6:24
标签:化简
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