# Ratios and proportions

9 videos

2 skills

Would you rather go to a college with a high teacher-to-student ratio or a low one? What about the ratio of girls-to-boys? What is the ratio of eggs to butter in your favorite dessert?
Ratios show up EVERYWHERE in life. This tutorial introduces you to what they (and proportions) are and how to make good use of them!

### Ratio word problem: boys to girls

VIDEO
2:04 minutes

In this example, we are given a ratio and then asked to apply that ratio to solve a problem. No problem!

### Ratio word problem: centimeters to kilometers

VIDEO
1:12 minutes

Let's solve this word problem using what we know about ratios so far.

### Solving ratio problems with tables example 1

VIDEO
5:05 minutes

We're displaying ratios in a table format here, and then asking: given a ratio, solve for equivalent ratios. Here are a few examples to practice on.

### Solving ratio problems with tables example 2

VIDEO
2:29 minutes

Let's compare 2 tables of ratios and interpret them to solve the word problem. This is a fun!

### Solving ratio problems with graph

VIDEO
1:34 minutes

In this example we'll plot points on the x and y axis to reflect the given ratios.