как 14х(1\2+1\3+1\4)

Question

как 14х(1\2+1\3+1\4)

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Answer 1

14*(1/2+1/3+1/4) =  14*(6/12+4/12+3/12) = 14*13/12 = 14*13/12 = 7*13/6 = 91/6 = 15  1/6
НОК(2,3,4) = 12
1/2 = 6/12
1/3 = 4/12
1/4 = 3/12