Question

realiza las siguientes operaciones con fracciones

1/2 + 2/5

3/4+2/7

6/7-3/8

9/10-3/5​

Answer 1

$\frac{1}{2} +\frac{2}{5} =\frac{5}{10}+\frac{4}{10}=\frac{5+4}{10}=\frac{9}{10}$

$\frac{3}{4} +\frac{2}{7} =\frac{21}{28}+\frac{8}{28}=\frac{21+8}{28}=\frac{29}{28}$

$\frac{6}{7} -\frac{3}{8} =\frac{48}{56}-\frac{21}{56}=\frac{48-21}{56}=\frac{27}{56}$

$\frac{9}{10} -\frac{3}{5} =\frac{9}{10}-\frac{6}{10}=\frac{9-6}{10}=\frac{3}{10}$