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

a. 1
b. 5/6
c. 2/3
d. 2

Answer 2

Resposta:

a)

3/4+1/4=3+1. =4/4=1

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4.

B)1-1/6=6-1 =5/6

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6

c) 4/3 - 4/6 =8/6 - 4/6= 4/6=2/3

d) 3/7 + 2/5 + 4/7 + 3/5 = 3/7 +4/7 + 2/5 + 3/5 =7/7 + 5/5 = 1 + 1 = 2