Find the greatest factors of each number. The factors of 40 are 1,2,4,5,8,10,20,40. The factors of 48 are 1,2,3,4,6,8,12,16,24,48. By going through the numbers, you see the greatest common factor is 8. Divide both numbers by 8, and you will get [tex] \frac{5}{6} [/tex]
