Which rational number falls between 7/8 and 6/9?
a) 15/31
b) 3/17
c) 53/72
d) 7/12
6/9 = [6 * 8] / { 9 * 8] = 48/72
7/8 = [ 7*9] / [ [ 8 *9 ] = 63/72
So...."C" looks to be correct
