Question

8) Calcule as operações e apresente o resultado na forma irredutível.
a) (+3/5) + (+1/2) =
b) (-2/3) + (+5/4) =
c) (-2/5) + 3 =
d) (-1/6) + (+2)=
e) 5 /3 - 7/3 =


QUESTÃO DE PROVA, DOU MAIS PONTOS

Answer 1

Explicação passo-a-passo:

.

Boa noite,

$a) - \dfrac{3}{5} + ( + \dfrac{1}{2})$

-$\dfrac{3}{5} + \dfrac{1}{2}$

$\dfrac{6 + 5}{10}$

$\dfrac{11}{10}$

.

$b) - \dfrac{2}{3} + ( + \dfrac{5}{4} )$

$- \dfrac{2}{3} + \dfrac{5}{4}$

$\dfrac{ - 8 + 15}{12}$

$\dfrac{7}{12}$

.

$c)( - \dfrac{2}{5} ) + 3$

$\dfrac{ - 2 + 15}{5}$

$\dfrac{13}{5}$

.

$d)( - \dfrac{1}{6} ) + ( + 2)$

$- \dfrac{1}{6} + 2$

$\dfrac{ - 1 + 12}{6}$

$\dfrac{11}{6}$

.

$e) \dfrac{5}{3} - \dfrac{7}{3}$

$\dfrac{5 - 7}{3}$

$- \dfrac{2}{3}$