Marty has saved $72. He spent $8 on a video rental. Write a ratio as a fraction in simplest form to represent what portion of his savings he has left.
a)64/72
b)8/72
c)1/9
d)8/9
You subtract 8 from 72 to get 64 which is the amount he had left so it would equal 64/72 but it asks for simplest form so you find the greatest common denominator which is 8 to get 8/9
