Percents, Decimals, and Fractions

Percents, Decimals, and Fractions

1 ÷ 2

These all mean the same thing.

121

2

To change a fraction into a decimal…Divide the numerator (top number) by the denominator (bottom number)

121

2

To change a fraction into a decimal…

Add a decimal and zero

.0121

2

To change a fraction into a decimal…

Move the decimal straight up .

121

2 .0

To change a fraction into a decimal…

Now just divide

.12

1

2 .0

To change a fraction into a decimal…And the answer is…

=0.51

2

To change a decimal into a fraction…(You have to know place value!)

Read it: 0.8 (eight tenths)Write it:

Reduce it:

Change 0.8 to a fraction in lowest terms

810 4

5

To change a decimal into a fraction…(You have to know place value!)

Read it: 0.09 (nine hundredths)

Write it:

Change 0.09 to a fraction in lowest terms

Reduce it: (already in lowest terms)

9100

9100

To change a decimal into a percent…

Multiply by 100 and add a % sign

Change 0.09 to a percent

9%

To change a decimal into a percent…

0.09Change 0.09 to a percent

HINT! HINT!

Answer: 9%

The easiest way to multiply by 100 is to move the decimal

2 places to the right.

To change a decimal into a percent…

0.45Change 0.45 to a percent

HINT! HINT!

Answer: 45%

0.5 50%= =

Fraction Decimal Percent

1

2

0.25 25%= =

Fraction Decimal Percent1

4

0.75 75%= =

Fraction Decimal Percent3

4

0.3 30%= =

Fraction Decimal Percent

3

10

0.03 3%= =

Fraction Decimal Percent3

100