16:12=16÷12=4/3
21:7=21÷7=3
9:81=9÷81=1/9
35:49=35÷49=5/7
求比值.(急!) 16:12 21:7 9:81 35:49
求比值.(急!) 16:12 21:7 9:81 35:49
數(shù)學(xué)人氣:430 ℃時間:2020-04-02 12:36:53
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