L'Hôpital's rule is like having a special way to solve a really tough math problem when you can't figure it out by just looking at it. It's kind of like when you ask a grown-up for help because the problem seems too hard on your own.
So, let's say you have a math problem that has fractions in it and it's really hard to figure out what the answer is. L'Hôpital's rule says that you can take the top and bottom parts of the fraction and find their slopes, which is like measuring how steep they are.
If both the top and bottom slopes are still really hard to figure out on their own, then you can use L'Hôpital's rule to take their slopes again. Sometimes, you might have to use L'Hôpital's rule a few times until you can finally figure out the answer.
L'Hôpital's rule is like a shortcut that helps you solve really hard math problems with fractions.