Question

O dobro de 2/4 menos 1 ??

Answer 1

2 * 2/4 - 1
4/4 - 1
1-1 = 0

Espero ter ajudado =)

Answer 2

$2*\frac{2}{4}-1=\\ \\ \frac{4}{4}-1=\\ \\ 1-1=0$