Question

a) 2 5 b) 4 2 c) 2 3
___+___= ____+____= ____+__
9 9 10 10 15 10
d) 5 3 1 e) 5 3
____+___+___= ____+____=
12 12 12 4 4

f) 1 2 3
___+___+___=
6 6 6​

Answer 1

Resposta:

Explicação passo a passo:

A) 2/9+5/9 = 7/9

b) 4/10+2/10 = 6/10 (:2)/(:2)= 3/5

c) 2/15+3/10

Mmc (15,10)= 30

15,10: 2

15,5: 3

5,5: 5

----------

1,1

= 2.3.5

= 30

(2.2+3.3)/30= (4+9)/30= 13/30

d) 5/12+3/12+1/12 = 9/12 (:3)/(:3)= 3/4

e) 5/4+3/4 = 8/4= 2

f) 1/6 + 2/6 + 3/6 =6/6= 1