Question

Calcule:

a) 2/3 + 1/8

b) 5/9 - 5/18

c) 8/7 + 5/3

d) 5/4 - 10/9

e) 23/16 - 5/6

f) 7/12 + 14/5
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Answer 1

Oi...

Calcule:

a)

2/3 + 1/8  ⇒ mmc = 24

16 + 3/24

19/24

b)

5/9 - 5/18  ⇒ mmc = 18

10 - 5/18

5/18

c)

8/7 + 5/3  ⇒ mmc = 21

24 + 25/21

59/21

d)

5/4 - 10/9  ⇒mmc = 36

45 - 40/36

5/36

e)

23/16 - 5/6  ⇒mmc = 48

69 - 40/48

29/48

f)

7/12 + 14/5⇒mmc = 60

35 + 168/60

203/60

Bons estudos,