120:66

To simplify the ratio 120:66, you can divide both numbers by their greatest common divisor (GCD).

1. Find the GCD of 120 and 66:

   • The factors of 120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
   • The factors of 66 are: 1, 2, 3, 6, 11, 22, 33, 66
   • The GCD is 6.

2. Divide both numbers by the GCD:

   • 120 ÷ 6 = 20
   • 66 ÷ 6 = 11

Thus, the simplified ratio is 20:11.