Conversion of Percents, Decimals, and Fractions

1
Conversion of Percents, Decimals, and Fractions

• FUN! FUN! FUN!

2
Decimals to Percents

• Move the decimal point 2 places to the right
• Example
• 0.63 63.
• 1.23 123.
• 0.02 2.
• 0.456 45.6

3
Percents to Decimals

• Move the decimal point 2 places to the left
• Example
• 64. 0.64
• 123. 1.23
• 1.5 0.015
• 45 0.45

4
Decimals to Fractions

• Read the decimal
• The number is the numerator
• The place value is the denominator
• Example
• 0.64 64/100
• 1.23 1 23/100
• 0.036 36/1,000
• 0.0006 6/10,000

5
Fractions to Decimals

• If the denominator is 10, 100, 1,000, 10,000 or
  any other multiple of ten. . .
• The numerator is the number
• The denominator is the place value position where
  you put the number
• If you can change the denominator to a multiple
  of ten, make the equivalent fraction with the
  denominator a multiple of ten.
• Do the same steps as above

6
Fractions to Decimals

• If the denominator is not a multiple of ten or
  you cannot change it easily . .
• FOOTBALL PILE UP!
• Numerator goes in the house and the denominator
  is outside the house

7
Fractions to Percents

• Change the fraction to a decimal
• Move the decimal point 2 places to the right

8
Percents to Fractions

• Write the percent as the numerator
• Do this only if the percent is under 99
• If the percent is over 99, the hundreds place is
  the whole number of the fraction
• Write 100 as the denominator
• Reduce/Simplify
• Example
• 99 99/100
• 41 41/100
• 316 3 16/100