Question

qual é o quociente de 69 por 20???? ​

Answer 1

$\frac{69}{20} = \frac{60 + 9}{20} = \frac{60}{20} + \frac{9}{20} = 3 + \frac{9}{20} \\ \\ 3 + \frac{8 + 1}{20} = 3 + \frac{8}{20} + \frac{1}{20} = \\ \\ = 3 + 0.4 + \frac{1}{20} = 3 + 0.4 + 0.05 = \\ \\ = 3.45$