Question

Alguém pode me ajudar com essas 2 questões?

Answer 1

C)

$\dfrac{3}{2}+\dfrac{1}{6}=\dfrac{9}{6}+\dfrac{1}{6}=\dfrac{10}{6}$

D)

$\bigg(\dfrac{3}{4}\bigg)\bigg(-\dfrac{8}{6}\bigg)=\bigg(\dfrac{3}{4}\bigg)\bigg(-\dfrac{4}{3}\bigg)=-1$