Question

me ajude a nesse exercicio (2/3+1/6) -(1-3/10) ?

Answer 1

5/6+2/10=50+12/60
62/60=1,03

Answer 2

$( \frac{2}{3}+ \frac{1}{6})-( 1-\frac{3}{10})$

Tirando o MMC de 3,6 e 10 obtemos 30:

$( \frac{10*2+5*1}{30})-( \frac{30*1-3*3}{30})$

$(\frac{20+5}{30})-( \frac{30-9}{30})$

$\frac{25}{30}- \frac{21}{30}= \frac{25-21}{30}= \frac{4}{30}= \frac{4:2}{30:2 } }= \frac{2}{15}$