I was recently faced with this question: What does 18 out of 21 mean? I decided to dig into it and find out for myself.
First, I sat down at my desk and grabbed a pen and paper. I started by writing down the numbers 18 and 21. I knew that to understand what 18 out of 21 meant, I needed to figure out the ratio or percentage.
I remembered from school that to find the percentage, I could divide 18 by 21 and then multiply by 100. So, I did the math. I took my calculator and punched in 18 divided by 21. The result was a long decimal number: 0.8571428571… Then I multiplied that by 100. I got approximately 85.71%.
But I wanted to make sure I really understood it. So, I thought of some real – life examples. I imagined a test with 21 questions. If someone got 18 questions right, they had an 85.71% score. That’s a pretty good grade, right?
I also thought about a pizza cut into 21 slices. If you ate 18 slices, you’ve eaten about 85.71% of the pizza. That’s a lot of pizza!
I shared my findings with a friend. He was like, “Oh, that makes sense!” And then he started coming up with his own examples, like a group of 21 people and 18 of them liking a certain movie. That would mean about 85.71% of the group liked the movie.
After all this thinking and calculating, I finally felt like I really grasped what 18 out of 21 meant. It’s not just a random fraction; it represents a significant proportion in many different scenarios. Whether it’s test scores, food portions, or people’s preferences, that ratio of 18 out of 21 shows up and tells us something useful.
So, there you have it. That’s my journey of figuring out what 18 out of 21 means. It might seem like a simple thing, but going through the process really helped me understand it better.