Ratios, Equivalent Ratios, Ratio Tables

What is a Ratio?

• A comparison of two quantities.

• A method of calculating percentages.

• A way to measure distance.

• A technique for data analysis.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

How do you find equivalent ratios?

• By adding both terms of the ratio together.

• By multiplying or dividing both terms of the ratio by the same non-zero number.

• By subtracting one term from the other.

• By taking the average of both terms.

Tags

CCSS.6.RP.A.3A

What is an example of a ratio?

• The ratio of 2 apples to 3 oranges can be written as 2:3.

• The ratio of 4 bananas to 5 grapes can be written as 4:5.

• The ratio of 1 car to 2 bikes can be written as 1:2.

• The ratio of 3 cats to 1 dog can be written as 3:1.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the first step to solve a ratio problem?

• Identify the quantities being compared.

• Calculate the total of the quantities.

• Determine the difference between the quantities.

• Convert the quantities to a common unit.

If the ratio of cats to dogs is 1:4 and there are 8 dogs, how many cats are there?

• 2 cats

• 4 cats

• 1 cat

• 3 cats

How can you express the ratio of 5 to 10 in simplest form?

• 1:3

• 1:2

• 2:5

• 5:10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

If the ratio of boys to girls in a class is 3:4, how many girls are there if there are 12 boys?

• 12 girls

• 14 girls

• 16 girls

• 18 girls

If a recipe calls for a ratio of 2 cups of flour to 3 cups of sugar, how much sugar is needed for 4 cups of flour?

• 4 cups of sugar

• 5 cups of sugar

• 6 cups of sugar

• 7 cups of sugar

What is the ratio of 10 to 25 in simplest form?

• 1:3

• 2:5

• 3:2

• 5:10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the purpose of a ratio table?

• To organize and find equivalent ratios easily.

• To calculate the area of geometric shapes.

• To list all prime numbers.

• To convert fractions into decimals.