Question

resolva as expressões fracionárias: a)1/2+3/2 = h)2/5 - 1/3=
b )4/3+5/3 = i) 6/4 - 1/7+1/2 = c)5/6+2/6 = j)2/9 + 1/8 - 1/6 =
d)1/2+1/3 = k)1/2 +3 =
e)1/2+1/4 = l)4-3. 3/4 =
f)1/3+1/4 = m)3.3/4 -4 =
g)2/4 - 2/3 = n)4/7- 6-2=
o)- 4/3-2/6=
p)- 3/8 + 2 =
q)- 5/2 - 2- 7/6= r)4/7- 1+7/9=
s)3/2- 1/10=
t)3/2- 3/5=

​

Answer 1

Oi....

a) 1/2 + 3/2

1 + 3/2

4/2

2

b) 4/3 + 5/3

4 + 5/3

9/3

3

c) 5/6 + 2/6

5 + 2/6

7/6

d) 1/2 + 1/3⇒ mmc = 6

3 + 2/6

5/6

e) 1/2 + 1/4⇒mmc =4

2 + 1/4

3/4

f) 1/3 + 1/4⇒mmc = 12

4 + 3/12

7/12

g) 2/4 - 2/3

1/2 - 2/3 ⇒mmc=6

3 - 4/6

- 1/6

h) 2/5 - 1/3⇒mmc = 15

6 - 5/15

1/15

i) 6/4 - 1/7 + 1/2

3/2 - 1/7 + 1/2⇒mmc = 14

21 - 2 + 7/14

26/14 ÷ 2

13/7

j) 2/9 + 1/8 - 1/6⇒mmc = 72

16 + 9 - 12/72

13/72

k) 1/2 + 3 = mmc = 2

1 + 6/2

7/2

l) 4 - 3.3/4

4 - 9/4⇒mmc = 4

16 - 9/4

7/4

m) 3.3/4 - 4

9/4 - 4 ⇒ mmc = 4

9 - 16/4

- 7/4

n) 4/7 - 6 - 2

4/7 - 8⇒mmc = 7

4 - 56/7

- 52/7

o) - 4/3 - 2/6

- 4/3 - 1/3

- 4 - 1/3

- 5/3

p) - 3/8 + 2 = mmc = 8

- 3 + 16/8

13/8

q) - 5/2 - 2 - 7/6 = mmc = 6

- 15 + 12 + 7/6

- 34/6 ÷ 2

- 17/3

r) 4/7 - 1 + 7/9⇒mmc = 63

36 - 63 + 49/63

22/63

s) 3/2 - 1/10 = mmc = 10

15 - 1/10

14/10 ÷ 2

7/5

t) 3/2 - 3/5 = mmc = 10

15 - 6 /10

9/10

Espero ter ajudado.

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