Question

qual é a fração de b)7|5 - 3|5 + 2|5 = c) 5|9 + 1|9 = d)1|10 + 3|10 - 2|10 = e)7|10 - 4|10 = f)8|15 - 4|15 : 1|15 =

Answer 1

Oi....

b)

7/5 - 3/5 + 2/5 =

7 - 3 + 2/5

9 - 3/5

6/5

c)

5/9 + 1/9

5 + 1/9

6/9 ÷3

2/3

d)

1/10 + 3/10 - 2/10

1 + 3 - 2/10

2/10 ÷ 2

1/5

e)

7/10 - 4/10

7 - 4/10

3/10

f)

8/15 - 4/15 ÷1/15

8/15 - 4/15 × 15

8/15 - 4⇒mmc = 15

8 - 60/15

- 52/15

Espero ter ajudado.