Kirsten's Trial Run
Kirsten's Trial Run

The Fraction Lab

Fifth graders: fractions, decimals, and percentages are different ways to show the same part of a whole. Explore the patterns, then test your skills below.

One value, three ways

Use 100 as a helpful bridge. A percent means “out of 100,” and a decimal is read by place value.

Fraction
1/2

One part out of two equal parts.

Decimal
0.5

Five tenths. Move the decimal point two places to make a percent.

Percent
50%

Fifty out of one hundred: 50/100, which simplifies to 1/2.

Worked example

Change 3/4 into a decimal

A fraction bar means division. Divide the top number, the numerator, by the bottom number, the denominator.

1

Write the fraction as a division problem: 3 divided by 4.

2

Divide: 3 ÷ 4 = 0.75.

3

The decimal is 0.75. So, 3/4 = 0.75.

Try the conversion challenge

Write the matching value. Fractions may be simplified.

0 of 4 correct

1. Write 25% as a decimal.

2. Write 0.75 as a fraction.

3. Write 3/5 as a percent.

4. Write 10% as a fraction.