算願:比を簡単にしよう1 なまえ . 4 : 12 =
25 : 5 = 10 : 4 = 3 : 15 = 8 : 10 = 8 : 16 = 12 : 3 = 10 : 2 = 12 : 3 = 8 : 4 = 3 : 15 = 10 : 4 = 6 : 12 = 8 : 4 = 2 : 4 = 9 : 12 = 12 : 16 = 10 : 25 = 16 : 8 = 10 : 6 = 12 : 9 = 6 : 4 = 16 : 4 = 8 : 2 = 15 : 3 =
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