Question

resolvam as frações e simplifique!
a: 5 3
- + -
2 4
b: 3 7
- + -
2 3

c: 6 3
- + -
8 2

d: 9 1
- + -
3 4

Answer 1

Olá, Karlinha.

Vamos lá.

a)

$\frac{5}{2}+ \frac{3}{4} = \frac{20+6}{8} = \frac{26}{8} = \frac{13}{4}$

b)

$\frac{3}{2} + \frac{7}{3} = \frac{9 + 14}{6} = \frac{23}{6}$

c)

$\frac{6}{8} + \frac{3}{2} = \frac{12 +24}{16} = \frac{36}{16} = \frac{18}{8} = \frac{9}{4}$

d)

$\frac{9}{3} + \frac{1}{4} = \frac{36 + 3}{12} = \frac{39}{12} = \frac{13}{4}$

Pronto!