Вычислите дроби прошууу!!(5класс)

[latex]1. 3 \frac{3}{12}+ \frac{5}{12}=3 \frac{3+5}{12}=3 \frac{8}{12}=3 \frac{2}{3}.[/latex] [latex]2. 3 \frac{3}{12}+1 \frac{5}{12}=4 \frac{3+5}{12}= 4\frac{8}{12}=4 \frac{2}{3}.[/latex] [latex]3. 3 \frac{3}{12}+ \frac{11}{12}=3 \frac{3+11}{12}=3 \frac{14}{12}=4 \frac{2}{12}=4 \frac{1}{6}.[/latex] [latex]4. 3 \frac{3}{12}+1 \frac{11}{12}=4 \frac{3+11}{12}=4 \frac{14}{12}=5 \frac{2}{12}=5 \frac{1}{6}.[/latex]