Question

Calcule: 1/6 + 1/2 - 5/4 - 4/10

Answer 1

Primeiro vc tem que igualar todas as bases
$\frac{5}{30} + \frac{15}{30} - \frac{37.5}{30} - \frac{12}{30} = - \frac{29.5}{30} = - \frac{59}{60}$