Question

Calcule mentalmente o valor de cada uma das expressões
A 3/4+1/4
B 1-1/6
C 4/3-4/6
D 3/7+2/5+4/7+3/5

Answer 1

Oi...

a)

3/4 + 1/4

3 + 1/4

4/4

1

b)

1 - 1/6

6 - 1/6

5/6

c)

4/3 - 4/6

4/3 - 2/3

4 - 2/3

2/3

d)

3/7 + 2/5 + 4/7 + 3/5

3 + 4/7 + 2 + 3/5

7/7 + 5/5

1 + 1

2

Boas lições.

Answer 2

Resposta:

a)

3/4 + 1/4

3 + 1/4

4/4

1

b)

1 - 1/6

6 - 1/6

5/6

c)

4/3 - 4/6

4/3 - 2/3

4 - 2/3

2/3

d)

3/7 + 2/5 + 4/7 + 3/5

3 + 4/7 + 2 + 3/5

7/7 + 5/5

1 + 1

2