Question

1 Resolva as seguintes expressões, simplificado quando possível
b)
$( \frac{3}{8} + 4 .\frac{1}{2} ) \div (3. \frac{2}{3} + \frac{1}{4} )$​

Answer 1

Resposta:

$( \frac{3}{8} + 4 .\frac{1}{2} ) \div (3. \frac{2}{3} + \frac{1}{4} ) = \\ ( \frac{3}{8} + \frac{4}{2} ) \div ( \frac{6}{3} + \frac{1}{4} ) = \\ ( \frac{3}{8} + \frac{16}{8} ) \div ( \frac{24}{12} + \frac{3}{12} ) = \\ ( \frac{19}{8} ) \div ( \frac{27}{12} ) = \\ \frac{19}{8} \times \frac{12}{27} = \frac{228}{216} \\ \frac{228 \div 12}{216 \div 12} = \frac{19}{18}$

resposta 19/18