Equivalent 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 do you simplify a ratio?

Back

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

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between numbers, meaning they can be simplified to the same form.

Front

How can you determine if two ratios are equivalent?

Back

You can determine if two ratios are equivalent by cross-multiplying and checking if the products are equal.

Front

What is the ratio of school apps to game apps if Kelly has 5 school apps and 3 game apps?

Back

The ratio of school apps to game apps is 5 to 3.

Front

If a ratio is expressed as 2:5, what does this mean?

Back

This means for every 2 parts of the first quantity, there are 5 parts of the second quantity.

Front

What is the formula to find a missing number in a ratio?

Back

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

Front

How do you convert a ratio to a fraction?

Back

To convert a ratio to a fraction, write the first term as the numerator and the second term as the denominator.

Front

If an ostrich runs 50 miles in 60 minutes, what is its speed in miles per minute?

Back

The speed is 50 miles / 60 minutes = 5/6 miles per minute.

Front

How long would it take an ostrich to run 15 miles at a speed of 50 miles in 60 minutes?

Back

It would take 18 minutes to run 15 miles.