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
$frac{1}{ frac{1}{33} + frac{1}{12} } = frac{1}{ frac{5}{44} } = frac{44}{5} = 8 frac{4}{5} = 8.8$