My question is How do I convert 2 and 4/5 to a percent
What you want to do is set up a whole fraction by multiplying the denominator (5) by 2 = 10, and then adding the numerator (4) = 14. You then put 14 as the numerator and keep 5 as the denominator. You then can set up the equation used to find percentage. 14/5 = x/100.
Cross multiplying, you end up with 1400 = 5x.
Dividing both sides by 5, solving for x gives you 280. Therefore x = 280 and your answer is 280%
Thanks and I hope that helps.