Section 1.6: Common Fractions
Essential Ideas

• Fundamental Property of Fractions
  If you multiply or divide both the numerator and the denominator by the same nonzero number, the resulting fraction will be the same.

• Procedure for Reducing Fractions
  Step 1. Find all common factors (other than 1).
  Step 2. Divide out the common factors.

• Procedure for Multiplying Fractions
  To multiply fractions, multiply numerators and multiply denominators.

• Procedure for Dividing Fractions
  To divide fractions, multiply by the reciprocal of the divisor. This is sometimes phrased as "invert and multiply."

• Procedure for Changing a Terminating Decimal into a Fraction
  
  1. Multiply the given number without its decimal point by the decimal name of the last digit.
  2. The decimal name of the last digit means:
     One place is tenth, or 1/10.
     Two places is hundredth, or 1/100.
     Three places is thousandth, or 1/1,000.