Question

Realize os cálculos necessários e escreva a fração equivalente a: a) 1/6, com denominador igual a 24 b)42/112 co. Numerador igual a 3

Answer 1

$a) \: \frac{1}{6} = \frac{x}{24} \\ \\ 6 \times x = 1 \times 24 \\ 6x = 24 \\ x = \frac{24}{6} \\ x = 4 \\ \\ \frac{1}{6} = \frac{4}{24} \\ 24 \times 1 = 4 \times 6 \\ 24 = 24 \\ \\ b) \: \frac{42}{112} = \frac{3}{y} \\ \\ \frac{3}{8} = \frac{3}{y} \\ \\ 3 \times y = 3 \times 8 \\ 3y = 24 \\ y = \frac{24}{3} \\ y = 8 \\ \\ \frac{42}{112} = \frac{3}{8} \\ \\ 42 \times 8 = 112 \times 3 \\ 336 = 336$