Ratios (East Intermediate School)

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you write a ratio?

Back

A ratio can be written in three ways: using a colon (e.g., 5:3), as a fraction (e.g., 5/3), or with the word 'to' (e.g., 5 to 3).

Front

What is the ratio of 10 to 5?

Back

The ratio of 10 to 5 simplifies to 2:1.

Front

If there are 4 apples and 2 oranges, what is the ratio of apples to oranges?

Back

The ratio of apples to oranges is 4:2, which simplifies to 2:1.

Front

How do you find the missing number in a ratio?

Back

To find a missing number in a ratio, set up a proportion and solve for the unknown value.

Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares different parts of a whole, such as the ratio of boys to girls in a class.

Front

What is a part-to-whole ratio?

Back

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

Front

How can ratios be used in recipes?

Back

Ratios in recipes indicate the proportion of ingredients needed to maintain the desired flavor and texture.

Front

What is the ratio of 5 balloons to 7 balloons?

Back

The ratio of 5 balloons to 7 balloons is written as 5:7.

Front

How do you scale a ratio?

Back

To scale a ratio, multiply or divide both parts of the ratio by the same number.