Question

помошите решить пжжж​

Answer 1

Ответ:

1) $\frac{4}{9}$  2) $\frac{8}{7}$  3) $\frac{32}{5}$

Пошаговое объяснение:

$(\frac{1}{9}+\frac{1}{3} ) : \frac{3}{3} \\\\\frac{1}{9}+ \frac{1}{3} = \frac{1+3}{9} = \frac{4}{9} \\\\\frac{4}{9}: \frac{3}{3}= \frac{4*3}{9*3} =\frac{4}{9}$

$2 - \frac{2}{3} :\frac{7}{9} \\\\\\\frac{2}{3}:\frac{7}{9} = \frac{2*9}{3*7} = \frac{6}{7} \\\\\frac{2}{1} -\frac{6}{7} = \frac{14-6}{7}= \frac{8}{7}$

$1\frac{1}{5}:\frac{2}{3}+\frac{1}3 \\\\\frac{6}{5} : \frac{2}{3}= \frac{6*3}{5*2} =\frac{9}{5} \\\\\frac{9}{5} + \frac{1}{3} = \frac{27+5}{15} = \frac{32}{5}$