The ratio of the number of adults to the number of children at a concert is 5 to 3. If there is a total of 120 people at the concert, how many are children?
There are 45 children. Add together your ratio numbers (5+3=8). Since there are 5 adults in ratio with 3 children, we will make a fraction of 5/8 divided by 120. We would get 75. 120-75 is 45. Our new ratio of adults to children is 75:45.
