Question

a razao de 1-1/2 para 3+1/2 e:
a)7 b)1/7 c)2 d)2/7

Answer 1

Letra b)

1 - 1/2 = (2-1)/2 = 1/2

3 + 1/2 = (6+1)/2 = 7/2

$\frac{1}{2} . \frac{2}{7} = \frac{2}{7.2} = \frac{1}{7}$