Ratios/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 a ratio?

Back

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

Front

What is the ratio of blue marbles to total marbles if there are 3 blue, 2 red, and 5 yellow marbles?

Back

The total number of marbles is 10. The ratio of blue marbles to total marbles is 3:10.

Front

If the ratio of red to yellow marbles is 2:5, how many red marbles are there if there are 25 yellow marbles?

Back

If there are 25 yellow marbles, then there are 10 red marbles (since 2/5 of 25 is 10).

Front

What is a ratio table?

Back

A ratio table is a tool used to organize pairs of numbers that have a constant ratio, helping to visualize the relationship between the quantities.

Front

If the ratio of tenants to cars is 3:5 and there are 30 tenants, how many cars are there?

Back

There are 50 cars (30 tenants corresponds to 50 cars based on the ratio 3:5).

Front

What is the ratio of red circles to blue stars if there are 7 red circles and 4 blue stars?

Back

The ratio of red circles to blue stars is 7:4.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD). For example, the ratio 8:12 simplifies to 2:3.

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

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

Front

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

Back

The ratio of flour to sugar is 2:3.