Proportions and Solving Proportions

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the numbers and then divide to find the unknown.

Front

What does it mean for two ratios to be proportional?

Back

Two ratios are proportional if they represent the same relationship or if they can be simplified to the same fraction.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What is the simplest form of a ratio?

Back

The simplest form of a ratio is when the numbers are reduced to their smallest whole number values.

Front

If there are 10 frisbees and 8 bones, what is the ratio of bones to frisbees?

Back

The ratio of bones to frisbees is 8/10, which simplifies to 4/5.

Front

What is the cross-multiplication method?

Back

Cross-multiplication is a method used to solve proportions by multiplying the numerator of one ratio by the denominator of the other ratio.

Front

If 5/6 is a ratio, what is a proportional ratio?

Back

A proportional ratio to 5/6 is 25/30.

Front

What is the first step in solving a proportion?

Back

The first step is to set the two ratios equal to each other.

Front

What is an example of a proportion?

Back

An example of a proportion is 1/2 = 2/4.