Equivalent Ratios

Front

What is an equivalent ratio?

Back

An equivalent ratio is a ratio that expresses the same relationship between two quantities, even if the numbers are different. For example, 1:2 and 2:4 are equivalent ratios.

Front

How do you find equivalent ratios?

Back

To find equivalent ratios, you can multiply or divide both terms of the ratio by the same non-zero number.

Front

What is the ratio of 5 to 10?

Back

The ratio of 5 to 10 can be simplified to 1:2, which is an equivalent ratio.

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If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

Front

How can you express the ratio of 4 apples to 6 oranges?

Back

The ratio of 4 apples to 6 oranges can be simplified to 2:3.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions. For example, the ratio 3:4 can be written as the fraction 3/4.

Front

If 3 pencils cost $1.50, what is the cost of 9 pencils?

Back

The cost of 9 pencils is $4.50, as the ratio of cost to pencils is equivalent.

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What is a part-to-part ratio?

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A part-to-part ratio compares one part of a whole to another part of the same whole, such as the ratio of boys to girls in a class.

Front

What is a part-to-whole ratio?

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A part-to-whole ratio compares one part of a whole to the entire whole, such as the ratio of boys to the total number of students.

Front

If a car travels 60 miles in 1 hour, what is the ratio of distance to time?

Back

The ratio of distance to time is 60 miles to 1 hour, or 60:1.