Correct: 1/5 = 2/10, 3/5 = 6/10, 10/20 = 1/2, 10/30 = 100/300, 3/10 = 6/20, Incorrect: 1/5 = 3/10, 3/5 = 5/10, 10/20 = 2/10, 10/30 = 10/300, 3/10 = 6/10,

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