Ratios

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 can a ratio be expressed?

Back

A ratio can be expressed in three ways: as a fraction (e.g., 3/4), with a colon (e.g., 3:4), or in words (e.g., 3 to 4).

Front

What is the ratio of blue triangles to red squares if there are 4 blue triangles and 3 red squares?

Back

The ratio of blue triangles to red squares is 4:3.

Front

Which of the following is NOT a valid way to write a ratio: 3:4, 3/4, or 3=4?

Back

3=4 is NOT a valid way to write a ratio.

Front

If there are 3 squares and 6 circles, what is the ratio of squares to circles?

Back

The ratio of squares to circles is 3:6, which can be simplified to 1:2.

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 to 3.

Front

If there are 3 green marbles and 2 red marbles, what is the ratio of green marbles to red marbles?

Back

The ratio of green marbles to red marbles is 3:2.

Front

What does it mean to simplify a ratio?

Back

Simplifying a ratio means reducing it to its simplest form by dividing both terms by their greatest common divisor.

Front

How do you convert a ratio expressed as a fraction to a colon format?

Back

To convert a fraction to colon format, write the numerator and denominator separated by a colon (e.g., 3/4 becomes 3:4).

Front

What is the greatest common divisor (GCD) of 4 and 6?

Back

The greatest common divisor (GCD) of 4 and 6 is 2.