a) 1/2 + 4/7 - 3/14 = 7/14 + 8/14 - 3/14 = 12/14 = 6/7
b) 14 * 2 * 11/14 = 14 * 39/14 = 39
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a) 1/2 + 4/7 - 3/14 = 7/14 + 8/14 - 3/14 = 12/14 = 6/7
b) 14 * 2 * 11/14 = 14 * 39/14 = 39