Question

1 phần 3 + 5 phần 7 = ?   

Answer 1

4/6

Answer 2

2/6 + 2/6 = 4/6 = 2/3

Answer 3

2/3

Answer 4

2/3

Answer 5

= 2/3

Answer 6

2/3

Answer 7

4/6

Answer 8

1/3 + 5/7 =  22/21

Answer 9

2/3

Answer 10

2/3

Answer 11

2/3

Answer 12

2/3

Answer 13

2/3

Answer 14

2/3

Answer 15

2/3