1: 略
2: 40% 25.2% 136% 1.8% 390%
3: 0.8 0.08 0.56 2 0.07
4: (1) 3/5 60% (2) 2/5 40%
5: 70% 75% 62.5% 57.1% 81.8%
6: 9/20 9/50 5/4 1/25 3/500
7 3/10 1/4 13/16
0.3 0.25 0.8125
30% 25% 81.25%
8: 0.375=37.5% 0.4=40% 0.8=80% 0.778=77.8%
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