Question

Determine:
3 + (1/2 + 1/3)
2 - (3/5 - 1/6)

Answer 1

MMC de 1, 2 e 3 → 6

$\frac{18}{6} + ( \frac{3}{6} + \frac{2}{6} )$

Então temos

$\frac{18}{6} + \frac{5}{6} = \frac{23}{6}$

MMC de 2, 5 e 6 → 30

Logo:

$\frac{60}{30} - (\frac{18}{30} - \frac{5}{30})$

$\frac{60 - 23}{30} = \frac{37}{30}$

Espero ter ajudado!