Suma y resta de números mixtos: Uno de los denominadores es el denominador común

$1\frac{1}{4}+2\frac{1}{2}=$

$3\frac{3}{4}$

$2\frac{4}{3}-1\frac{1}{2}=$

$1\frac{5}{6}$

$3\frac{2}{8}-1\frac{3}{4}=$

$1\frac{1}{2}$

$4\frac{5}{6}+1\frac{1}{12}=$

$5\frac{11}{12}$

$12\frac{1}{49}+2\frac{3}{7}=$

$14\frac{22}{49}$

$1\frac{2}{3}+1\frac{2}{6}=$

$3$

$3\frac{1}{3}-2\frac{14}{15}=$

$\frac{2}{5}$

$3\frac{3}{5}+1\frac{1}{15}=$

$4\frac{2}{3}$

$3\frac{5}{16}+6\frac{5}{8}=$

$9\frac{15}{16}$

$6\frac{1}{9}-2\frac{2}{3}=$

$3\frac{4}{9}$

$7\frac{5}{6}+6\frac{2}{3}+\frac{1}{3}=$

$14\frac{5}{6}$