Key Concepts

• Fraction Addition
  • If $a,b$, and $c$ are numbers where $c\ne 0$ , then ${\Large\frac{a}{c}}+{\Large\frac{b}{c}}={\Large\frac{a+c}{c}}$ .
  • To add fractions, add the numerators and place the sum over the common denominator.
• Fraction Subtraction
  • If $a,b$, and $c$ are numbers where $c\ne 0$ , then ${\Large\frac{a}{c}}-{\Large\frac{b}{c}}={\Large\frac{a-b}{c}}$ .
  • To subtract fractions, subtract the numerators and place the difference over the common denominator.