Question

Efetue as adições:

a) (-2/5)+3=

b) (-1/6)+(+2)=

c) (-5/3)+(+1)

Answer 1

Vamos lá:

a) $- \frac{2}{5} + 3 \\ 3 = \frac{15}{5} \\ - \frac{2}{5} + \frac{15}{5} \\ \frac{13}{5}$

b) $\frac{1}{6} + 2 \\ 2 = \frac{12}{6} \\ \frac{1}{6} + \frac {12}{6} \\ \frac{13}{6}$

c) $- \frac{5}{3} + 1 \\ 1 = \frac{3}{3} \\ - \frac{5}{3} + \frac{3}{3} \\ - \frac{2}{3}$

Espero ter ajudado.