Suma y resta de números mixtos: Más de dos fracciones

$\frac{6}{7}x+\frac{8}{7}x+3\frac{2}{3}x=$

$5\frac{2}{3}x$

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

$14\frac{5}{6}$

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

$3\frac{3}{4}$

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

$8\frac{1}{2}$

$2\frac{1}{2}+3\frac{2}{4}-1\frac{3}{6}=$

$4\frac{1}{2}$

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

$6$

$10\frac{2}{7}-2\frac{3}{7}+7\frac{1}{6}=$

$15\frac{1}{42}$

$5\frac{1}{2}-2\frac{3}{4}+4\frac{2}{6}=$

$7\frac{1}{12}$

$6\frac{2}{4}+1\frac{4}{6}+2\frac{7}{12}=$

$10\frac{3}{4}$

$6\frac{2}{9}+1\frac{2}{3}+1\frac{5}{9}=$

$9\frac{4}{9}$

$4\frac{2}{5}+1\frac{3}{10}+2\frac{1}{20}+2\frac{3}{5}=$

$10\frac{7}{20}$

$6\frac{2}{7}+1\frac{3}{14}+2\frac{3}{7}+1\frac{1}{14}=$

$11$