1. A comparison of one quantity to another quantity
Write and Identify Ratios
A ratio is:
The ratio of circles to stars is 3 to 2. A ratio can be written in three ways:
Write ratios (in all three forms) for the following comparisons from the picture above.
1. Stars to circles All items to circles
2. Circles to all items All items to stars
3. Stars to all items
A comparison of one quantity to another quantity

2. Write the ratio as a fraction and reduce.
To simplify ratios:
Tell whether the ratio is in simplest form. If not, write Are the ratios equivalent? Yes or No.
it in simplest form. Then, write the ratio in two other ways. HINT!
Write ratios using the picture at the right. Simplify the ratios. Then, write the ratio in two other ways. 5. 6. 7.
Write the ratio as a fraction and reduce.
You can write the simplified ratio in any of the three ways.
Write as fractions and see if they are equal