Ratios and Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you write the ratio of 5 apples to 10 oranges?

Back

The ratio of 5 apples to 10 oranges can be written as 5:10, which can be simplified to 1:2.

Front

What is a ratio table?

Back

A ratio table is a table that shows the relationship between two quantities and lists pairs of numbers that maintain the same ratio.

Front

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

Back

If the ratio is 3:4, then for every 3 boys, there are 4 girls. If there are 12 boys, there are (12 boys * 4 girls) / 3 boys = 16 girls.

Front

What does part-to-part ratio mean?

Back

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

Front

What does part-to-whole ratio mean?

Back

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

Front

If there are 8 red marbles and 4 blue marbles, what is the ratio of blue to red marbles?

Back

The ratio of blue to red marbles is 4:8, which simplifies to 1:2.

Front

How can you find a missing number in a ratio?

Back

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

Front

What is the ratio of 15 to 25 in simplest form?

Back

The ratio of 15 to 25 in simplest form is 3:5.

Front

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.