Our current ratio is: 85 : 102 To put this ratio in simplest form, we need to check all the factors of each number and see if there is a number in common. Let's factor 85. 85 = 1 x 85, 5 x 17. Let's factor 102. 102 = 1 x 102, 2 x 51, 3 x 34, 6 x 17. These two numbers have 17 as the greatest number in common. Divide both numbers by 17 to find the ratio in simplest form. 85 / 17 = 5 102 / 17 = 6. Your simplified ratio is 5 : 6. I hope this helps!