Question

Por favor me ajudem ✌✌​

Answer 1

Explicação passo-a-passo:

$1 - \\ a)\frac{1}{3 } + \frac{1}{5} = \frac{5 + 3}{15} = \frac{8}{15} \\ \\ b) \frac{3}{4} + \frac{1}{2} = \frac{6 + 4}{8} = \frac{10}{8} \\ \\ c) \frac{2}{4} + \frac{2}{3} = \frac{6 + 8}{12} = \frac{14}{12} \\ \\ d) \frac{1} {4} + \frac{2}{3} + \frac{1}{2} = \frac{3 + 8 + 6}{12} = \frac{17}{12} \\ \\ e) \frac{1}{2} + \frac{1}{7} + \frac{5}{7} = \frac{7 + 2 + 10}{14} = \frac{19}{14}$

$2 - \\ a) \frac{5}{4} - \frac{1}{2} = \frac{10 - 4}{8} = \frac{6}{8} \\ \\ b) \frac{3}{5} - \frac{2}{7} = \frac{21 - 10}{35} = \frac{11}{35} \\ \\ c) \frac{8}{10} - \frac{1}{5} = \frac{8 - 2}{10} = \frac{6}{10} \\ \\ d) \frac{5}{6} - \frac{2}{3} = \frac{5 - 2}{6} = \frac{4}{6} \\ \\ e) \frac{3}{4} - \frac{1}{2} = \frac{3 - 2}{4} = \frac{1}{4}$