Writing Ratios 3 Ways

Front

What is a ratio?

Back

A ratio is a way to compare two quantities by using division. It shows how much of one thing there is compared to another.

Front

How do you write a ratio?

Back

A ratio can be written in three ways: using a colon (e.g., 3:2), as a fraction (e.g., 3/2), or with the word 'to' (e.g., 3 to 2).

Front

What does 'part to part' ratio mean?

Back

A part to part ratio compares different parts of a whole. For example, in a class of 5 boys and 3 girls, the part to part ratio of boys to girls is 5:3.

Front

What does 'part to whole' ratio mean?

Back

A part to whole ratio compares a part of the group to the entire group. For example, if there are 5 boys and 3 girls, the part to whole ratio of boys to total students is 5:8.

Front

What is multiplicative reasoning?

Back

Multiplicative reasoning is when you compare quantities by multiplication, like saying one quantity is a certain number of times larger than another.

Front

What is additive reasoning?

Back

Additive reasoning is when you compare quantities by addition, like saying one quantity is more than another by a certain amount.

Front

If there are 4 red apples and 3 green apples, what is the ratio of red apples to green apples?

Back

The ratio of red apples to green apples is 4:3.

Front

In a gym class, if there are 5 boys and 3 girls, what is the ratio of girls to boys?

Back

The ratio of girls to boys is 3:5.

Front

If 53 students prefer football and 42 prefer baseball, what is the part to part ratio of football to baseball?

Back

The part to part ratio of football to baseball is 53:42.

Front

How do you find the total number of students in a class if you know the number of boys and girls?

Back

Add the number of boys and girls together. For example, 5 boys + 3 girls = 8 students.