We simplify a ratio in fraction form in the same way that we would simplify a fraction. We use the greatest common factor of both the numerator and the denominator. By dividing the numerator and the denominator by the GCF we can simplify the fraction.
The GCF of both 2 and 22 is 2. 2÷2 = 1
22÷2 11
The simplest form of the ratio is 1 to 11. We can write this in three ways 1 to 11, 1:11 and 1/11. When we simplify a ratio in fraction form, we also write an equivalent form of the original ratio. 1/11 = 2/22