Question

4) calcule.
a) 5/7 + 2/7

b) 7/12 + 3/6

c) 3/5 + 2/6

d) 4/6 + 1

Por favor preciso para hj quem me ajudar eu agradeço.​

Answer 1

Resposta:

A-

$\frac{5}{7} + \frac{2}{7} = \frac{7}{7} = 1$

B-

$\frac{7}{12} + \frac{3}{6} = \frac{7 + 6}{12} = \frac{13}{12}$

C-

$\frac{3}{5} + \frac{2}{6} = \frac{18 + 10}{30} = \frac{28}{30} = \frac{14}{15}$

D-

$\frac{4}{6} + 1 = \frac{4 + 6}{6} = \frac{10}{6} = \frac{5}{3}$