Question

1. Calcule: a)11/15+3/5 b)21/10+2/3

Answer 1

Resposta: a) $\frac{4}{3}$ $= 1,3333...$

b) $\frac{83}{30}$ $= 2,7666...$

Explicação passo-a-passo:

a) $\frac{11}{15} +\frac{3}{5} = \frac{11}{15}+\frac{9}{15} = \frac{20}{15}$ , simplificando fica $\frac{4}{3}$

b) $\frac{21}{10} + \frac{2}{3} =\frac{63}{30}+\frac{20}{30} = \frac{83}{30}$