Question

Calcule e simplifique o resultado se for possível: a) 1/4 + 1/4 + 3/4 - 1/4 = ?/4 b) - 1/2 + 3/4 = ?/2 c) - 5/3 + 1/3 + 2/3 = ?/3 d) - 7/5 + 4/5 + 6/5 = ?/5 presiso para hoje valendo 30 pontos​

Answer 1

Resposta:

A) 1/4+1/4+3/4-1/4= ?

1/4+3/4

1+3/4

=4/4/4

=1/4

B) -1/2+3/4=

-2+3/4

=1/4/2

=1/8

C) -5/3+1/3+2/3=

-5/3+2/9

-13/9

=-13/27

D) -7/5+4/5+6/5=

-7+4+6/5

3/5/5

=3/25