Question

01 ) Encontre o resultado dos cálculos abaixo:
7- 8=
5 5

4 + 2=
8 8​

Answer 1

$\large\boxed{\begin{array}{l}\sf\dfrac{7}{5}-\dfrac{8}{5}=-\dfrac{1}{5}\\\\\sf \dfrac{4}{8}+\dfrac{2}{8}=\dfrac{6\div2}{8\div2}=\dfrac{3}{4}\end{array}}$