Percents, Decimals, and Fractions

1

1 2

2

1

2

These all mean the same thing.

To change a fraction into a decimal

Divide the numerator (top number) by the

denominator (bottom number)

1

2

1

2

To change a fraction into a decimal

Add a decimal and zero

1

.0

2

1

2

To change a fraction into a decimal

Move the decimal straight up

.

1

.0

2

1

2

To change a fraction into a decimal

Now just divide

.

1

2

1

.0

2

To change a fraction into a decimal

And the answer is

1

0.5

2

To change a decimal into a fraction

(You have to know place value!)

Change 0.8 to a fraction in lowest terms

Read it 0.8 (eight tenths)

8

Write it

10

4

Reduce it

5

To change a decimal into a fraction

(You have to know place value!)

Change 0.09 to a fraction in lowest terms

Read it 0.09 (nine hundredths)

9

Write it

100

9

Reduce it (already in lowest terms)

100

To change a decimal into a percent

Change 0.09 to a percent

Multiply by 100 and add a sign

9

To change a decimal into a percent

0.09

Change 0.09 to a percent

HINT!

HINT!

The easiest way to multiply by 100 is to move the

decimal 2 places to the right.

Answer 9

To change a decimal into a percent

0.45

Change 0.45 to a percent

HINT!

HINT!

Answer 45

Fraction Decimal Percent

1

0.5

50

2

Fraction Decimal Percent

1

0.25

25

4

Fraction Decimal Percent

3

0.75

75

4

Fraction Decimal Percent

3

0.3

30

10

Fraction Decimal Percent

3

0.03

3

100