Question

CALCULE O VALOR DESSA EXPRESSÃO NUMÉRICA
A) 1/2.(1/5+1/2.1/3) -1/5.(1/6 + 1/2.1/5)?

Answer 1

$\frac{1}{2} x (\frac{1}{5} + \frac{1}{6}) </p><p>-\frac{1}{5} x (\frac{1}{6} +\frac{1}{10} )=</p><p>\frac{1}{2} x \frac{11}{30} - </p><p>\frac{1}{5} x \frac{4}{15} =</p><p>\frac{11}{60} - \frac{4}{75} =</p><p>\frac{13}{100} = 0,13$