Question

$\frac{1}{6} + \frac{2}{3} = \\ \frac{2}{5 } + \frac{1}{3 } = \\ \frac{1}{12} + \frac{1}{18} =$
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Answer 1

Explicație pas cu pas:

1/6 + 2/3 = 1/6 + 2•2/6 = 1/6+4/6 = 5/6

2/5 + 1/3 = 3•2/15 + 5/15 = 6/15 + 5/15 = 11/15

1/12 + 1/18 = 3/36 + 2/36 = 5/36

12 = 2^2 • 3

18 = 2 • 3^2

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cmmmc = 2^2 • 3^2 = 4•9 = 36