Question

Efetue as operações :

a)1/2 + 3/4=
b) 2/6 + 3/7 =
c) 3/5 - 2/4 =
d) 5/21- 3 /14 =

Answer 1

$A)$

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

$B)$

$\frac{2}{6} + \frac{3}{7}= \frac{14+18}{42}= \frac{32}{42}$

$C)$

$\frac{3}{5} - \frac{2}{4}= \frac{12-10}{20}= \frac{2}{20}$

$D)$

$\frac{5}{21}- \frac{3}{14}= \frac{10-9}{42}= \frac{1}{42}$

$ESPERO$  $TER$  $AJUDADO.$