1. Ratio- compares one number to another.
2.6
Equivalent Ratios
Ratio- compares one number to another.
Lowest terms- ratios are reduced to the lowest common denominator.

2. A ratio is the quotient (dividing) of two numbers and is used to compare one number to another. The order of the numbers in a ratio is important.
Ratios can be written in three different ways:
1 to : /3

3. Write the ratio in 2 other ways:= 7
3 :16 =
5 to 8 =

4. Ratios can be reduced to lowest terms:
the ratio 2 = 1
8 4
2 to 8 = 1 to 4, 2:8 = 1:4
8 ft to 5 ft
The ratio is 8 to 5, 8 , 8:5 5

5. Equivalent Ratios
To find a ratio equivalent to another ratio you must multiply by 1: /2, 3/3, 4/4, etc
4 × 2 = 8

6. Another way to find a ratio equivalent to another ratio is to simplify on your calculator (division).
a b/c key and EXE.
20 = 2

7. To find if 2 ratios are equivalent to each other, you calculate the cross product.
10 = 15

8. Find equivalent ratios for each fraction.
Are the ratios equivalent?
2 = = = 6

9. Do Now
2: :12
3: :4
100: :25
10: :12