Simplifying Ratios
To simplify a ratio, we can identify common factors and divide each value by them. Once we can't identify any more common factors, we would know that the ratio has been simplified.
Solving the Question
We're given the ages of 3 teachers: 48, 24 and 28 years.
The oldest and youngest teachers are 48 and 24 years old.
The ratio between the oldest and youngest teachers is 48:24.
48:24
Both of them have a common factor of 4. Divide both numbers by 4:
12:6
They still have a common factor of 6. Divide both numbers by 6:
2:1
Answer
2:1