Estimate of 0 (when the numerator is much smaller than the denominator)
1/8, 3/19, 2/13
Estimate of 1/2 (when the numerator is approximately half of the denominator)
5/9, 2/5, 3/7, 6/14
Estimate of 1 (when the numerator and denominator are similar)
7/8, 9/11, 10/12
