Question

1) Efetua as adições:



a) 1 / 4 + 1 / 6
b) 2 / 5 + 3 / 4
c) 1 / 9 + 2 / 3
d) 1 / 2 + 1 / 4

e) 1 / 8 + 1 / 4
f) 1 / 5 + 2 / 7
g) 3 / 4 + 1 / 6
h) 1 / 3 + 2 / 7
i)
2 / 9 + 1 / 3
j) 3 / 8 + 1 / 4



2)Efetua as subtrações:



a) 2 / 3 – 1 / 2
b) 2 / 5 – 1 / 4
c) 5 / 6 – 1 / 4
d) 1 / 4 – 1 / 8

e) 3 / 4 – 5 / 8
f) 1 / 2 – 1 / 4
g) 5 / 8 – 2 / 5
h) 1 / 4 – 1 / 6

i) 2 / 3 – 1 / 4
j) 1 / 2 – 2 / 5​

Answer 1

Resposta:

30+80=110 3/ 4-5

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