Question

foloseste factorul comun
2/12 * 6 + 1/13 * 6 + 12/13 * 6 =

Answer 1

Explicație pas cu pas:

$6 \times ( \frac{2}{12} + \frac{1}{13} + \frac{12}{13} ) =$

$6 \times ( \frac{1}{6} + \frac{13}{13} ) =$

$6 \times ( \frac{1}{6} + 1) =$

$6 \times \frac{1 + 6}{6} =$

$6 \times \frac{7}{6} = 7$