RatiosLesson 6-1

Write each Fraction in Simplest Form: 1. 4/12 =

2. 18/27 =

3. 14/63 =

4. 3/48 =

Check Skills You’ll Need

1/3

2/3

2/9

1/16

CCS: 6.RP.1. Understand the concept of a ratio and use ratio language to describe a ratio relationship between two quantities

Objectives: • Students will write ratios in three

different ways• Students will write and find equal

ratios• Students will write ratios in

simplest form

A ratio is a comparison of two numbers by division.

Each number in a ratio is called a term.

An equal ratio is when two ratios name the same number

Vocabulary

A ratio is a comparison between two numbers by division.

It can be written in three different ways:

Ratios

5 to 25 : 2 5

2

When two ratios name the same number, they are equal. It’s like writing an equivalent fraction.

Equal Ratios

20 : 30Equal Ratios:

10 : 15 2 : 3 80 : 120

Ratios can be written in simplest form. Divide both terms in the ratio by their GCF.

Ratios in Simplest Form

Example: 12 to 8

3 to 2

Divide by GCF

Ratio Blaster

Ratio Martian

Ratio Stadium- Play with your friends!

HOMEWORK TIME: pg. 271, 2-48 EVEN

Classwork: Play these games from Academic Skill Builders to read,

write and identify ratios: