Ratios and Equivalent Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

How do you write a ratio?

Back

Ratios can be written in three ways: using a colon (e.g., 4:1), as a fraction (e.g., 4/1), or with the word 'to' (e.g., 4 to 1).

Front

What is an equivalent ratio?

Back

Equivalent ratios are two or more ratios that express the same relationship between numbers, even if the numbers themselves are different.

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 simplest form of a ratio?

Back

The simplest form of a ratio is when the two numbers are reduced to their smallest whole number values while maintaining the same relationship.

Front

Example of a real-life ratio: 4 meatballs to 1 cup of sauce. What does this mean?

Back

This means for every 4 meatballs, there is 1 cup of sauce, showing the relationship between the two quantities.

Front

If a class has 16 boys and 32 girls, what is the ratio of girls to boys in simplest form?

Back

The ratio of girls to boys is 2:1.

Front

Are the ratios 4:5 and 8:15 equivalent?

Back

No, they are not equivalent ratios.

Front

If 15 pairs of socks cost $15, what is the cost per pair?

Back

The cost per pair is $1.

Front

If 10 pairs of socks cost $25, what is the cost per pair?

Back

The cost per pair is $2.50.