Question

1. Calcule As Operações Entre As Frações abaixo: 3/4 + 1/6 =
2/5 + 3/10 =
8/3 + 5/4 =
7/2 + 5/3 =
8/3 - 2/5 =
9/2 - 8/10 =
11/3 - 5/6 =
10/7 - 5/10 =​

Answer 1

Resposta:

Explicação passo a passo:

$a) \frac{3}{4} + \frac{1}{6} =\\\\ \frac{18}{24} + \frac{4}{24} =\\\\ \frac{22}{24} = \frac{11}{12}\\\\\\b) \frac{2}{5} + \frac{3}{10} =\\\\ \frac{4}{10} + \frac{3}{10} =\\\\ \frac{7}{10}\\\\\\c) \frac{8}{3} + \frac{5}{4} =\\\\ \frac{32}{12} + \frac{15}{12} =\\\\ \frac{47}{12}\\\\\\d) \frac{7}{2} + \frac{5}{3} =\\\\ \frac{14}{6} + \frac{10}{6} =\\\\ \frac{24}{6} = \frac{4}{1} = 4$

$e) \frac{8}{3} - \frac{2}{5} =\\\\ \frac{40}{15} - \frac{6}{15} =\\\\ \frac{34}{15}\\\\\\f) \frac{9}{2} - \frac{8}{10} =\\\\ \frac{90}{20} - \frac{16}{20} =\\\\ \frac{74}{20} = \frac{37}{10}\\\\\\\\g) \frac{11}{3} - \frac{5}{6} =\\\\ \frac{66}{18} - \frac{15}{18} =\\\\ \frac{51}{18}\\\\\\h) \frac{10}{7} - \frac{5}{10} =\\\\ \frac{100}{70} - \frac{35}{70} =\\\\ \frac{65}{70} = \frac{13}{14}$

Answer 2

Resposta:

$\frac{3}{4} + \frac{1}{6 } = \frac{9 + 2}{12} = \frac{11}{12} \\ \\ \frac{2}{5} + \frac{3}{10} = \frac{4 + 3}{10} = \frac{7}{10}$

$\frac{8}{3} + \frac{5}{4} = \frac{32 + 15}{12} = \frac{47}{12} \\ \\ \frac{7}{2} + \frac{5}{3} = \frac{21 + 10}{6} = \frac{31}{6}$

$\frac{8}{3 } - \frac{2}{5} = \frac{40 - 6}{15} = \frac{34}{15} \\ \\ \frac{9}{2} - \frac{8}{10} = \frac{45 - 8}{10} = \frac{37}{10}$

$\frac{11}{3} - \frac{5}{6} = \frac{22 - 5}{6} = \frac{17}{6} \\ \\ \frac{10}{7 } - \frac{5}{10} = \frac{100 - 35}{70} = \frac{65}{70} = \frac{13}{14}$