Daniel L. answered • 10/26/15

Certified Tutor and Academic Coach

Hi Carina,

Start with the fraction of students who are still in class--> 12/21 which reduces to 4/7

Now change into a decimal by dividing 7 into 4--> 0.5714

Now change into a percent by moving the decimal point 2 places to the right--> 57%

Dan