Question

CaLCULE E SIMPLIFICA OS RESULTADOS.
4/5-1/5
5/6-2/6
1/2+2/3 
5/6+2/3

Answer 1

4/5 - 1/5 = 3/5
5/6 - 2/6 = 3/6 = 1/2
1/2 + 2/3 = 7/6
5/6 + 2/3 = 5/6 + 4/6 = 9/6 =3/2

Answer 2

$\boxed{\frac{4}{5}-\frac{1}{5}=\frac{3}{5}}\\ \\ \boxed{\frac{5}{6}-\frac{2}{6}=\frac{3}{6}=\frac{1}{2}}\\ \\ \boxed{\frac{1}{2}+\frac{2}{3}=\frac{3+4}{6}=\frac{7}{6}}\\ \\ \boxed{\frac{5}{6}+\frac{2}{3}=\frac{5+4}{6}=\frac{9}{6}=\frac{3}{2}}$