Proportions and Percentages

Front

What is a proportion?

Back

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

Front

What is a percentage?

Back

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

Front

How do you convert a fraction to a percentage?

Back

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

Front

What is the formula to find the percentage of a number?

Back

Percentage = (Part/Whole) x 100.

Front

If 25% of a number is 50, what is the number?

Back

The number is 200.

Front

What percent of 50 is 10?

Back

20%.

Front

How do you find the part when given the percentage and the whole?

Back

Part = (Percentage/100) x Whole.

Front

What is 10% of 200?

Back

20.

Front

If 60 is 30% of a number, what is the number?

Back

The number is 200.

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying by 100.