Question

efetue e simplifique se possivel
A) 3/11 + 5/11
B) - 7/12 + 5/12
C) -4/7 - 2/7
D) 2/3 + 1/3 +7/3
E) -2/5 +4/5-3/5
F) -3/10 -5/10 -4/10
G) -7/9 +5/9-2/9

Answer 1

Resposta:

$a) \frac{8}{11}$

$b) \frac{ - 2}{12 } = \frac{ - 2 \div 2}{12 \div 2} = \frac{ - 1}{6}$

$c) \frac{ - 6}{7}$

$d) \frac{10}{3}$

$e) \frac{3}{5}$

$f) \frac{ - 12}{10} = \frac{ - 12 \div 2}{10 \div 2} = \frac{ - 6}{5}$

$g) \frac{ -4 }{9}$

Explicação passo-a-passo:

A)3/11+5/11 = 8/11

B)-7/12+5/12 = -2/12

C)-4/7-2/7 = -6/7

D)2/3+1/3+7/3 = 10/3

E)-2/5+4/5-3/5 = 3/5

F)-3/10-5/10-4/10 = -12/10

G)-7/9+5/9-2/9 = -2/9-2/9 = -4/9