Question

Me ajudem, preciso disso pronto para amanhã :(

Answer 1

$a)1 + \frac{1}{2} + \frac{1}{3} = \frac{3}{6} = \frac{1}{2} \\ \\ b) \frac{1}{7} + \frac{2}{3} + \frac{3}{2} = \frac{6}{42} = \frac{1}{7}$