9/70
7/9
83/90 is in its simplest form.
28 over 90 in its simplest form is 14 over 45.
1 over 90 is already in it's simplest form.
The simplest form for 81 over 90 is 9/10
121/90 is already in its simplest form
It is: 18/90 = 1/5 in its simplest form
84/90 in simplest form is 14/15. :-)
6480/90 = 72
90/5 is 18/1 in its simplest form which is the same as 18
The simplest form of 3528/6480= 49/90