Question

Срочно заранее спасибо

Answer 1

$\frac{1}{ \frac{1}{33}+ \frac{1}{12} } = \frac{1}{ \frac{4}{132}+ \frac{11}{132} } = \frac{1}{ \frac{15}{132} } = 1/ \frac{15}{132} = \frac{1}{1} * \frac{132}{15} = \frac{132}{15}$=8,8

Answer 2

1/(1/33 + 1/12) = 1/(4/132 + 11/132) =
= 1/(15/132) = 1/(5/44) =
= 44/5 = 8 целых 4/5 = 8,8