12 = (2*2) * 3
8 = (2*2*2)
НОК (12 и 8) = (2*2*2) * 3 = 24 - наименьшее общее кратное
24 : 12 = 2 - доп.множ. к 7/12 = (7*2)/(12*2) = 14/24
24 : 8 = 3 - доп.множ. к 5/8 = (5*3)/(8*3) = 15/24
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12 = (2*2) * 3
8 = (2*2*2)
НОК (12 и 8) = (2*2*2) * 3 = 24 - наименьшее общее кратное
24 : 12 = 2 - доп.множ. к 7/12 = (7*2)/(12*2) = 14/24
24 : 8 = 3 - доп.множ. к 5/8 = (5*3)/(8*3) = 15/24