Question

Problema 01 – Resolva as seguintes frações:
a) 2/3 + 7/3 = b) 1/2 + 4/5 = c) 3/5 + 8/5 = d) 5/6 + 1/2 = e) 2/3 – 7/3 =
f) 3/5 – 9/5 =

Answer 1

• Olá •

$a) \: \: \: \frac{2}{3} + \frac{7}{3} = \\ \\ \frac{2 + 7}{3} = \\ \\ \frac{9}{3} = \\ \\3$

∆ A) 3

∆∆∆

$b) \: \: \: \frac{1}{2} + \frac{4}{5} = \\ \\ \frac{5 + 8}{10} = \\ \\ \frac{13}{10}$

∆ B) 13/10

∆∆∆

$c) \: \: \: \frac{3}{5} + \frac{8}{5} = \\ \\ \frac{3 + 8}{5} = \\ \\ \frac{11}{5}$

∆ C) 11/5

∆∆∆

$d) \: \: \: \frac{5}{6} + \frac{1}{2} = \\ \\ \frac{5 + 3}{6} = \\ \\ \frac{8}{6} = \\ \\ \frac{4}{3}$

∆ D) 4/3

∆∆∆

$e) \: \: \: \frac{2}{3} - \frac{7}{3} = \\ \\ \frac{2 - 7}{3} = \\ \\ \frac{ - 5}{3} = \\ \\ - \frac{5}{3}$

∆∆∆

$f) \: \: \: \frac{3}{5} - \frac{9}{5} = \\ \\ \frac{3 - 9}{5} = \\ \\ \frac{ - 6}{5} = \\ \\ - \frac{6}{5}$

∆ Espero ter ajudado, bons estudos ∆