Question

calcule simplificando quando for preciso​

Answer 1

Resposta:

2/3 , 5/17 , 17/21 , 15/16 , 34/35 , 1/3 , 17/24 , 4/5 , 68/45

Explicação passo-a-passo:

a) 2/9 + 4/9 = 6/9 = 2/3

b) 13/17 - 8/17 = 5/17

c) 13/21 + 4/21 = 17/21

d) 26/32 + 7/32 - 3/32 = 30/32 = 15/16

e) 4/7 + 2/5 = 20/35 + 14/35 = 34/35

f) 10/6 - 4/3 = 5/3 - 4/3 = 1/3

g) 3/8 + 2/6 = 9/24 + 8/24 = 17/24

h)  6/4 - 7/10 = 30/20 - 14/20 = 16/20 = 4/5

i) 12/5 - 8/9 = 108/45 - 40/45 = 68/45