Question

30 pts!!! Urgenteee

2- Aplique as regras convenientes e calcule a soma e a subtração das frações abaixo:

Answer 1

Olá

$a.\\\frac{5}{4}-\left(\frac{1}{2}+\frac{3}{4}\right)\\\\\frac{5}{4}-\frac{5}{4}\\\\\huge\orange{\mathtt{\boxed{\boxed{0}}}}\\\\\\b.\\\left(\frac{6}{4}-\frac{1}{2}\right)+\left(\frac{5}{6}+\frac{1}{3}\right)\\\\\left(\frac{3}{2}-\frac{1}{2}\right)+\left(\frac{5}{6}+\frac{1}{3}\right)\\\\1+\left(\frac{5}{6}+\frac{1}{3}\right)\\\\1+\frac{7}{6}\\\\\frac{13}{6}\\\huge\orange{\mathtt{\boxed{\boxed{2\frac{1}{6}}}}$

Espero ter ajudado!