Question

Subpunctul b)....Dau coroana

Answer 1

$( -\frac{9}{22} )x( \frac{-7}{12} + \frac{5}{18} )= ( -\frac{9}{22} )x( \frac{-21+10}{36})= ( -\frac{9}{22} )x( -\frac{11}{36} )= \frac{1}{8}$

$( \frac{-7}{30} + \frac{1}{12} )x( \frac{-5}{6} )= \\ ( \frac{-14}{60} + \frac{5}{60})x( \frac{-5}{6} )= \\ ( \frac{-9}{60} )x( \frac{-5}{6} )= \frac{1}{8}$

Answer 2

(-7/30+1/12)*(-5/6)=-54/360*(-5/6)=9/72=1/8