Question

me ayudan a resolverlo​

Answer 1

Respuesta:

$\frac{1}{2} + \frac{2}{5} = \frac{9}{10} \\ \frac{3}{8} - \frac{1}{4} = \frac{1}{8} \\ \frac{3}{8} \times \frac{1}{4} = \frac{3}{32} \\ \frac{3}{4} \times \frac{7}{5} = \frac{21}{20}$

espero haber ayudado ^^

Answer 2

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

$\frac{3}{8} -\frac{1}{4}= \frac{12-8}{32}=\frac{4}{32}=\frac{1}{8}$

$\frac{3}{4}:\frac{7}{5}=\frac{15}{28}=\frac{5}{7}$

$\frac{3}{8}*\frac{1}{4}=\frac{3}{32}$