Question

efetue as adições a seguir

Answer 1

A)
$\frac{1}{2} + \frac{3}{5} \: \\ \\ 2 \times 5 = 10 \ \\mmc = 10 \\ \\ \\ \frac{5 }{10} + \frac{6}{10 } = \frac{5 + 6}{10} = \frac{11}{10}$
B)
$\frac{5}{7} + \frac{1}{7} = \frac{5 + 1}{7} = \frac{6}{7}$
C)
$\frac{3}{6} + \frac{2}{6} = \frac{3 + 2}{6} = \frac{5}{6}$
D)
$\frac{4}{9} + \frac{2}{9} = \frac{4 + 2}{9} = \frac{6}{9} ( \div 3) = \frac{2}{3}$
E)
$\frac{2}{8} + \frac{5}{8} = \frac{2 + 5}{8} = \frac{7}{8}$
F
$\frac{3}{9} + \frac{2}{9} = \frac{3 + 2}{9} = \frac{5}{9}$