14 and 17 have no common factor except ' 1 '.
So 14/17 can't be simplified.
(That's why the class learned common factors
before simplifying fractions. Were you there ?)
170 over 140 in lowest terms is 17/14 or 13/14
72 over 306 in lowest terms is 4/17
51 over 57 in lowest terms is 17/19
52 over 68 in lowest terms is 13/17
17/625 is a fraction in its lowest terms
17 over 8
THe answer is 17 over 15
In its lowest terms: 17/85 = 1/5
17/20
1/3
17/32
17/63