Question

me pueden ayudar es para hoy con procedimiento porfa

Answer 1

$\frac{3}{8}+\frac{7}{5}+\frac{1}{3}$
$=\frac{3\cdot \:15}{120}+\frac{7\cdot \:24}{120}+\frac{40}{120}$
$=\frac{3\cdot \:15+7\cdot \:24+40}{120}$
$=\frac{253}{120}$


$\frac{6}{4}+\frac{2}{3}+\frac{1}{7}$
$=\frac{3}{2}+\frac{2}{3}+\frac{1}{7}$
$=\frac{3\cdot \:21}{42}+\frac{2\cdot \:14}{42}+\frac{6}{42}$
$=\frac{3\cdot \:21+2\cdot \:14+6}{42}$
$=\frac{97}{42}$


$\frac{6}{5}+\frac{2}{6}+\frac{2}{9}$
$=\frac{6}{5}+\frac{1}{3}+\frac{2}{9}$
$=\frac{6\cdot \:9}{45}+\frac{15}{45}+\frac{2\cdot \:5}{45}$
$=\frac{6\cdot \:9+15+2\cdot \:5}{45}$
$=\frac{79}{45}$


$\frac{1}{4}+\frac{2}{12}+\frac{3}{6}$
$=\frac{1}{4}+\frac{1}{6}+\frac{3}{6}$
$=\frac{1}{4}+\frac{1}{6}+\frac{1}{2}$
$=\frac{3}{12}+\frac{2}{12}+\frac{6}{12}$
$=\frac{3+2+6}{12}$
$=\frac{11}{12}$