Question

resolva as seguintes operações envolvendo frações
a) 2/5 + 1/3 =

b) 3/5 + 2/4=

c) 5/6 - 1/2

d)5/8 - 3/4

Answer 1

A = 3/8
B= 6/9
c=4/3
d= 2/4

Answer 2

a)
$\\ \frac{2}{5} + \frac{1}{3} = \frac{6}{15} + \frac{5}{15} = \frac{11}{15}$
b)
$\frac{3}{5} + \frac{2}{4} = \frac{12}{20} + \frac{10}{20} = \frac{22}{20}$
c)
$\frac{5}{6} - \frac{1}{2} = \frac{5}{6} - \frac{3}{6} = \frac{2}{6}$
d)
$\frac{5}{8} - \frac{3}{4} = \frac{5}{8} - \frac{6}{8} = \frac{1}{8}$