How Fractions are Used on the Job

• Tape measurer's inch is divided into 16 equal parts.

• Parts of an inch are written as a fraction.

  
  

Proper fraction

• The top number (numerator) is smaller than the bottom number (denominator)

• 3/4

• 1/16

• 1/2

Mixed number

• The number includes a whole number and a fraction.

• 1 1/2

• 345 7/16

• 5 3/4

Improper Fractions

• When the top number (numerator) is larger than the bottom number (denominator)

• You have more pieces than the whole is divided into

  
  

• 5/4 or 7/3 or 18/16

Equivalent Fractions

• A fraction is equal to a whole (1) when you have all the parts that the whole was divided

• 3/3=1 or 16/16=1 or 4/4=1

• Top # (numerator) is the same as the bottom # (denominator)

More Equivalent Fractions

• In math, equivalent fractions can be defined as fractions with different numerators and denominators that represent the same value or proportion of the whole.

• 4/16=1/4=2/8

• 12/16=3/4=9/12