Rates Ratios Complex Fractions

A ratio is

• another way of multiplying

• a comparison of two quantities using division.

• is a two dimensional figure.

• is the same as the associative property.

There are 45 boys and 30 girls on the soccer team, which ratio shows the ratio in simplest terms

• 45 to 30

• 30:45

• 3/2

• 9/6

Simplify the complex fraction.

• 18

• 1/18

• 9/72

• 1/8

What is a Ratio?

• Is a comparison of two quantities

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one

• Two decimals that can be multiplied

Match the following:

• A ratio that compares quantities of different kinds of units.

• Unit Rate

• A rate that has a denominator of one.

  Found by dividing the numerator by the denominator.

• Rate

• Compares two quantities such as part to part, part to whole, or whole to part.

• Complex Fraction

• A fraction where the numerator, the denominator or both contain a fraction.

• Ratio

Choose the correct complex fraction that represents the problem:

• 
• 
• 
• 

Simplify the complex fraction shown.

• 9/40

• 40/9

• 10/36

• 5/18

Simplify the complex fraction.

• 82

• 1/82

• 41/50

• 50/41

There are 24 dogs to 18 cats at the pet day care. Write the ratio of cats to dogs.

• 3:4

• 24:18

• 12:9

• 4:3

Your parents asked you to calculate miles per gallon for the family road trip. They drove 256 miles with 8 gallons of gas. How many miles per gallon?

• 16 miles per gallon

• 42 miles per gallon

• 24 miles per gallon

• 32 miles per gallon