Question

помагите пожалуйста 2 и 4 ​

Answer 1

2) 3$frac{5}{12}$ + 9$frac{1}{6}$ - 5$frac{1}{18}$ = $frac{41}{12}$ + $frac{55}{6}$ - $frac{91}{18}$ = $frac{123 + 330 - 182}{36}$ = $frac{271}{36}$ = 7$frac{19}{36}$

4) 5$frac{2}{3}$ + 11$frac{7}{12}$ - 4$frac{3}{4}$ = $frac{17}{3}$ + $frac{139}{12}$ - $frac{19}{4}$ = $frac{68 + 139 - 57}{12}$ = $frac{150}{12}$ = 12$frac{6}{12}$ = 12$frac{1}{2}$ = 12,5