Question

me ajudem...por favor...

Answer 1

a) A + B + C

1/5 + 5/6 + 1/3
(mmc)

6 + 25 + 10
---------------
30

6+35
-------
30

41/30

b) B - A

5/6 - 1/5
(mmc)

25- 6
-------
30

19/30

c)A + B - C

1/5 + 5/6 - 1/3
(mmc)

6 + 25 - 10
---------------
30

6 + 15
---------
30

21/30
(reduzindo)

7/10