Question

4/15 - 2/3 ∙ 9/10 + 28/3

Answer 1

$\frac{4}{15} - \frac{2}{3} * \frac{9}{10}+ \frac{28}{3}$


$\frac{4}{15}- \frac{2*9}{3*10}+ \frac{28}{3}$

$\frac{4}{15}- \frac{18}{3*10}+ \frac{28}{3}$

$\frac{4}{15} - \frac{18}{30} + \frac{28}{3}$

$\frac{4}{15} - \frac{3}{5} +9 \frac{1}{3}$

$\frac{4}{15}- \frac{3}{5} + \frac{9*3+1}{3}$

$\frac{4}{15}- \frac{3}{5} + \frac{28}{3}$

Igualamos os denominadores

$\frac{4}{15} - \frac{3*3}{3*5} + \frac{2*28}{5*3}$

$\frac{4}{15} - \frac{9}{15} + \frac{140}{15}$ = 9