find the reciprocal. show that the product of the mixed number and its reciprocal is 1.
1, 10 1/2
2, 6 3/7
3, 2 8/9
4, 15 1/4
5, 9 2/3
6, 7 5/8
1, 10 1/2
2, 6 3/7
3, 2 8/9
4, 15 1/4
5, 9 2/3
6, 7 5/8