Question

дроби 1/1/33+1/12

как?????

Answer 1

сначала находим
$\frac{1}{33} + \frac{1}{12} = \frac{1}{3 \times 11} + \frac{1}{3 \times 4} = \\ = \frac{4 + 11}{3 \times 4 \times 11} = \frac{15}{3 \times 4 \times 11} = \frac{5}{44}$
ну а
$\frac{1}{ \frac{1}{33} + \frac{1}{12} } = \frac{1}{ \frac{5}{44} } = \frac{44}{5} = 8 \frac{4}{5} = 8.8$