Jason will reach the park first. To get to your answer, you need to make both fractions have a common denominator. Since 8 times 5 and 10 times 4 both equal to 40, the common denominator will be 40. Then all you need to do is take the fractions 9/10 and 5/8 and turn the denominator to 40. Once that is done, you need to change the numerators.You will then see that Jason rode 36/40 and Clint only rode 25/40. 36 > 25, so Jason will reach the park first.