It is common for schools to grade using a 4.0 grade point scale. This means that if you have a 3.7 GPA, you probably get mostly A's and an occasional B.
39/100 is the fraction in lowest terms.
It is: 26/39 = 2/3 in its lowest terms
39% = 39/100
32 over 39 can not be reduced, it is already in lowest/simplest terms
39/50 is a fraction in its lowest terms
2/39 is in its lowest terms.
39/91 = 3/7
8/39 is already expressed in simplest terms.
39 over 20 is = 119/20
39/42 = 13/14
In today's terms: XXXIX = 39
It is: 1170/39 = 30/1 which is 30