Question

Efetue as operações com frações:3/10+2/5=
1/3+5/12+10/15=
2+5/12=
2-5/12
10/12 - 2/3

Answer 1

Olá...

a)

3/10 + 2/5⇒mmc = 10

3 + 4/10

7/10

b)

1/3 + 5/12 + 10/15

1/3 + 5/12 + 2/3

1 +2/3 + 5/12

3/3 + 5/12

1 + 5/12⇒mmc = 12

12 + 5/12

17/12

c)

2 + 5/12 ⇒ mmc = 12

24 + 5/12

29/12

d)

2 - 5/12⇒mmc = 12

24 - 5/12

19/12

e)

10/12 - 2/3

5/6 - 2/3⇒mmc = 6

5 - 4/6

1/6

Espero ter ajudado.