Verified answer

Resposta:

1-

a) 341/100

b) 154461/1000

c) 1/5

2- letra c

3-

a) 4/6 + 2/6 = 6/6 = 1

b) 8/3 - 5/7= 56/21 - 15/21 = 41/21  

c) 13,45 + 0,3 = 13,75  

d) 46,89 - 34,9 = 11,99

4-

a) 15/4 × 6/2 = 15/1  

b) 8/7 × 9/5 = 72/35

c) 12,3 × 2,3 = 28,29  

d) 3,02 × 6,2 = 18,724