Writing Ratios

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 in the form 'a to b' or 'a:b'.

Front

How can ratios be written?

Back

Ratios can be written in several ways: as fractions (a/b), with a colon (a:b), or in words (a to b).

Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares two parts of a whole, showing how many of one part there are compared to another part.

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares a part of a group to the entire group, showing how many of one part there are compared to the total.

Front

Write the ratio of 3 apples to 5 oranges in three different ways.

Back

3:5, 3/5, 3 to 5.

Front

If there are 10 boys and 15 girls in a class, what is the ratio of boys to girls?

Back

The ratio of boys to girls is 10:15, which can be simplified to 2:3.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both parts of the ratio by their greatest common divisor (GCD).

Front

What is the ratio of 4 legs to 1 head?

Back

The ratio of legs to heads is 4:1.

Front

If 20 students prefer soccer and 30 prefer basketball, what is the part-to-part ratio of soccer to basketball?

Back

The part-to-part ratio of soccer to basketball is 20:30, which simplifies to 2:3.

Front

What is the ratio of daffodils to day-lilies if there are 15 daffodils and 14 day-lilies?

Back

The ratio of daffodils to day-lilies is 15:14.