Question

calcule e simplifique os resultados quando for possível

a) 1/2+2/3
b)5/6+2/3
c)4/5+2/3
d)9/2+7/4+2/3
e)2/5+1/10+1/2
f)2/7+1/10+2/3

Answer 1

Resposta:

a) 1/2+2/3

3+4/6

7/6

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b) 5/6+2/3

15+12/18

27/18

3/2

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c) 4/5+2/3

12+10/15

22/15

----------------

d) 9/2+7/4+2/3

54+21+8/12

83/12

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mmc(2,4,3)= 2*2*3=12

2,4,3 | 2

1,2,3. | 2

1,1,3. | 3

1,1,1

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e) 2/5+1/10+1/2

4+1+5/10

10/10= 1

mmc(5,10,2)=2*5=10

5,10,2 | 2

5,5,1. | 5

1,1,1

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e) 2/7+ 1/10+ 2/3

60+21+140/210

221/210

mmc (7,10,3)= 2*3*5*7= 210

7,10,3 | 2

7, 5, 3 | 3

7,5, 1. | 5

7, 1, 1. | 7

1,1,1.