Question

a resposta é a conta pronta ​

Answer 1

Resposta:

$\dfrac{3}{1}+\dfrac{1}{4}-\dfrac{1}{2}=\\ \\ mmc(4,2)=4\\ \\ \\ \dfrac{12+1-2}{4}=\dfrac{13-2}{4}=\boxed{\dfrac{11}{4}}$