at an amusement park only 18 people are allowed on a ride at the same time. there are 157 people waiting in line. how many groups will there be show your work

First I divided 157 by 18, which got me to 8.72 repeating. But since people can't be measured in decimals, I rounded up to the nearest whole number, which is 9. So there will be 9 groups of people of 18.

157/18=8.72 so there will be 9 groups