1. Write each fraction in simplest form.
1/3
4/12
18/27
14/63
3/48
2/3
2/9
1/16

2. Ratios

3. 5 2 Words: 5 to 2 Symbols 5 : 2 Fraction What is a Ratio?
Comparing two numbers by division.
It can be written in three different ways:
Words: 5 to 2
Symbols 5 : 2
Fraction 5 2

4. Chex Mix Recipe (makes 7 cups) - 4 cups cereal, 2 cups pretzels, 1 cup M&M’s
Statement
Words
Symbols
Fractions
Cereal to pretzels
4 to 2
4:2
4/2
Cereal to Chex Mix
4:7
Pretzels to cereal
2 to 4
M&M’s to pretzels
4 to 7
4/7
2:4
2/4
1 to 2
1:2
1/2

5. Ex 1: 20 : 30 80 : 120 10 : 15 2 : 3 What are Equal Ratios?
When two ratios name the same number, they are equal. (Like an equivalent fraction.)
Ex 1:
20 : 30
Equal Ratios:
80 : 120
10 : 15
2 : 3

6. Ex 2:
10 : 35
Equal Ratios:
2 : 7
20 : 70
30 : 105

7. How can Ratios be written in Simplest Form?
Divide both terms in the ratio by their GCF.
Example 3: 12 to 8
3 to 2

8. Write each ratio in simplest form:
Ex 4: 4:20 Ex 5: 12:3
1:5
4:1

9. Write each ratio in simplest form:
Ex 6: 10:1 THIS IS THE SIMPLEST FORM!

10. Classwork Time