Answer:
21/36 or 7/12
Explanation:
1+1
1+2, 2+1, 2+2
1+3, 3+1, 2+3, 3+2, 3+3, 3+4
1+4, 4+1, 2+4, 4+2, 4+3
1+5, 5+1, 2+5, 5+2
1+6, 6+1
1.6m questions
2.0m answers