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Respondido

39. Efetue as operações:a) 5/4 + 3⁄4 - 1⁄4 =b) 2/5 + 1/5 – 3/5 =c) 8/7 – 3/7 + 1/7 =d) 7/3 – 4/3 – 1/3 =e) 1/8 + 9/8 -3/8=f) 7/3 – 2/3 + 1/3 =g) 7/5 + 2/5 – 1/5 =.

Resposta :

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Resposta:

Explicação passo a passo:

Efetue as operações:

a) 5/4 + 3⁄4 - 1⁄4 = 2/4-1/4

= 1/4

b) 2/5 + 1/5 – 3/5

= 3/5-3/5

= 0

c) 8/7 – 3/7 + 1/7

= 5/7 + 1/7

= 6/7

d) 7/3 – 4/3 – 1/3 = 7/3 - 5/3

= 2/3

e) 1/8 + 9/8 - 3/8= 10/8 - 3/8

= 7/8

f) 7/3 – 2/3 + 1/3 = 5/3 + 1/3

= 6/3

= 2

g) 7/5 + 2/5 – 1/5

= 9/5 - 1/5

= 8/5

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