сократите дроби 108/72 36/243 120/168 720/640

108/72 = 12/8 = 3/2 = 1  1/2
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36/243 = 4/27
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120/168 = 15/21 = 5/7
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720/640 = 72/64 = 9/8 = 1  1/8