Вопрос в картинках...

По действиям:
1)1 $\frac{1}{2}$ *14 = $\frac{3*14}{2}$ = 21
2)21:28 = $\frac{21}{28}$
3) $\frac{3}{14}$ * $\frac{21}{28}$ = $\frac{9}{56}$
4)48 $\frac{3}{5}$ :6 $\frac{3}{4}$ = $\frac{243*4}{5*27}$ = $\frac{36}{5}$
5) $\frac{36}{5}$ * $\frac{5}{12}$ = $\frac{36*5}{5*12}$ = 3
6) $\frac{9}{56}$ +3 = $\frac{9}{56}$ + $\frac{168}{56}$ = $\frac{177}{56}$ = 3 $\frac{9}{56}$