Question

calcule as somas de frações​

Answer 1

Resposta:

Explicação passo a passo:

A) +5/3+1/3= (5+1)/3= 6/3= 2

B) -3/2+(-6/2)= (-3-6)/2= - 9/2

C) -10/7+(+6/7)=(-10+6)/7= - 4/7

_________

D)

- 3/5 - 5/4

Mmc (5,4)=20

5,4:2

5,2:2

5,1:5

1,1

= 2.2.5

= 4.5

=20

= [4.(-3) - 5.5]/20

= (-12-25)/20

= - 37/20

_________

E)

= 5/2-7/3

Mmc (2,3)=6

2,3:2

1,3:3

1,1

= 2.3

= 6

= (3.5 - 2.7)/6

= (15-14)/6

= 1/6