How many unique numbers can be made from creating a fraction with 2,3,4,or 6 in the numerator and 2,3,4 or 6 in the denominator?
We have 4 x 4 = 16 possibilities
2/2 2/3 2/4 2/6
1 2/3 1/2 1/3
3/2 3/3 3/4 3/6
3/2 1 3/4 1/2
4/2 4/3 4/4 4/6
2 4/3 1 2/3
6/2 6/3 6/4 6/6
3 2 3/2 1
The ones in red are unique = 9
