In this lesson, we are going to talk about ratios and proportions. A ratio is a comparison between two things, most likely two parts or two quantities - two of something. If the first thing is a, and the second thing is b, we have three ways that we can write ratios. The first way is by saying a:b, and this is how the ratios are mainly written. It could also be written as a fraction. A proportion would be two equal ratios - if you have a ratio equaling a ratio, then that becomes a proportion. You'll learn how you can solve problems that involve ratio and proportion.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Using Proportions and Ratios
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.