Question

Efetue o cálculo a seguir: 4,886 : 0,4

Answer 1

4,886/0,4 = 4886/400 = 12,215

Answer 2

$4.886 = \frac{4886}{1000} \\ \\ 0.4 = \frac{4}{10} \\ \\ \frac{4886}{1000} \div \frac{4}{10} = \frac{4886}{1000} \times \frac{10}{4} = \frac{48860}{4000} \\ \\ \frac{48860 \div 20}{4000 \div 20} = \frac{2443}{200} = 12.215$