Answer:
2/3 or 66.7%
Explanation:
The old price of 1 crayon was 75/16 or about 4.69 cents
The new price of 1 crayon is 25/16 or about 1.56 cents
now to find the discount you can find out how much percent of 4.69 is 1.56 and then subtract from 1 if you use a fraction or 100 if you use percentage to get the final answer.
(1.56/4.69) * 100= 1/3
1 - 1/3= 2/3