Ratio and Percent Practice

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

How do you simplify a ratio?

Back

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

Front

If the ratio of pink flowers to blue flowers is 3 to 6, what is the simplified ratio?

Back

The simplified ratio is 1 to 2.

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and multiply by 100.

Front

What is the equivalent fraction to 25%?

Back

The equivalent fraction to 25% is 1/4.

Front

If there are 400 seats and 60% are occupied, how do you find the number of available seats?

Back

Multiply 400 by 0.60 to find occupied seats (240), then subtract from 400 to find available seats (160).

Front

What is the formula to find the total number of items in a ratio?

Back

Total = Sum of the parts of the ratio multiplied by a common factor.

Front

If the ratio of tomatoes to red apples is 2:5 and there are 20 tomatoes, how do you find the number of red apples?

Back

Set up the proportion: 2/5 = 20/x, then cross-multiply and solve for x to find 50 red apples.

Front

What does it mean if a survey shows that 25 out of 100 people visited a place?

Back

It means that 25% of the surveyed population visited that place.