Question

Efetue as adições. Não se esqueça de simplificar o resultado:
a) 9/8 + 5/8
b) 4/10 + 5/10
c) 9/15 + 8/15
d) 15/9 + 8/9
e)3/7 + 5/7

Answer 1

Resposta:

Explicação passo a passo:

$a)\ \frac{9}{8}+\frac{5}{8}\\\\\frac{9+5}{8}\\\\\frac{14}{8}\\\\\frac{7}{4}\\\\b)\ \frac{4}{10}+\frac{5}{10}\\\\\frac{4+5}{10}\\\\\frac{9}{10}\\\\c)\ \frac{9}{15}+\frac{8}{15}\\\\\frac{9+8}{15}\\\\\frac{17}{15}\\\\d)\ \frac{15}{9}+\frac{8}{9}\\\\\frac{15+8}{9}\\\\\frac{23}{9}\\\\e)\ \frac{3}{7}+\frac{5}{7}\\\\\frac{3+5}{7}\\\\\frac{8}{7}$