lesson 1

Question 1

ratio

Answer 1

a comparison of two or more values

Question 2

Example 1

Answer 2

When Callie was making pancakes, she used 3 eggs for every 12 pancakes. What is the ratio of eggs to pancakes?

The question is asking for the ratio of eggs to pancakes. This means for every 3 eggs in the recipe, Callie can make 12 pancakes. Remember, a ratio expresses a relationship between two or more numerical values.

1 –The ratio of eggs to pancakes in word notation is 3 to 12.

2 –The ratio in odds notation is 3:12.

3 –The ratio in fractional notation is 3/12

Question 3

Example 3

Answer 3

There were 25 teachers and 15 principals attending a meeting. What was the ratio of principals to teachers?

The ratio of the 15 principals to 25 teachers is 15 to 25, 15:25, or 15/25 The fractional notation can be simplified to an equivalent fraction of 3/5 : 3/5.

The ratio of principals to teachers in lowest terms is 3/5

You can use ratios to solve various types of real-world problems.