Question

Ayuda porfas doy corona D:​

Answer 1

A)

$\frac{1}{3} +\frac{1}{2} +\frac{1}{5} \\MCM=30\\\frac{10+15+6}{30}= \frac{31}{30}$

B)

$\frac{2}{5} +\frac{2}{7} -\frac{10}{35} \\\\\frac{10}{35} =\frac{2}{7} \\\\\frac{2}{5} +\frac{2}{7} -\frac{2}{7}$simplemente t quedará $\frac{2}{5}$

E)$\frac{3}{5} -\frac{2}{8}$   MCM=40

$\frac{24-10}{40} =\frac{14}{40} =\frac{7}{20}$

E) $\frac{7}{9} -\frac{4}{3}$   MCM= 9

$\frac{7-12}{9} =-\frac{5}{9}$