Question

а).(37+5/12)*4 ; б).(56-29):11

Answer 1

$( frac{3}{7} + frac{5}{12} )*4=( frac{36+35}{84} )*4= frac{71}{84} *4= frac{71}{21} =3 frac{8}{21} \ \ \ ( frac{5}{6} - frac{2}{9} ):11=( frac{15-4}{18} ):11= frac{11}{18} * frac{1}{11} = frac{1}{18}$