Percent, Fraction, Decimal

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the top number (numerator) by the bottom number (denominator) and then multiply by 100. For example, 1/4 = (1 ÷ 4) × 100 = 25%.

Front

What is a decimal?

Back

A decimal is a way of representing numbers that are not whole numbers. It uses a decimal point to separate the whole part from the fractional part. For example, 0.75 is a decimal.

Front

How do you convert a percent to a decimal?

Back

To convert a percent to a decimal, divide the percent by 100. For example, 25% = 25 ÷ 100 = 0.25.

Front

What is the relationship between fractions, decimals, and percents?

Back

Fractions, decimals, and percents are different ways to represent the same value. For example, 1/2 = 0.5 = 50%.

Front

If 40% of a class of 30 students are girls, how many girls are in the class?

Back

To find the number of girls, calculate 40% of 30: 0.40 × 30 = 12 girls.

Front

What is the formula to find the percent of a part compared to a whole?

Back

The formula is: (Part ÷ Whole) × 100 = Percent.

Front

If a pizza is cut into 8 slices and 3 slices are eaten, what percent of the pizza is left?

Back

5 slices are left. To find the percent left: (5 ÷ 8) × 100 = 62.5%.

Front

How do you find the whole if you know the part and the percent?

Back

Use the formula: Whole = Part ÷ (Percent ÷ 100). For example, if 30 is 60%, then Whole = 30 ÷ (60 ÷ 100) = 50.

Front

What is 25% of 200?

Back

To find 25% of 200, calculate: 0.25 × 200 = 50.