How do you subtract fractions?
- Make sure the bottom numbers (the denominators) are the same.
- Subtract the top numbers (the numerators). Put the answer over the same denominator.
- Simplify the fraction (if needed).
To Subtract Fractions with different denominators:
- Find the Lowest Common Denominator (LCD) of the fractions.
- Rename the fractions to have the LCD.
- Subtract the numerators of the fractions.
- The difference will be the numerator and the LCD will be the denominator of the answer.
How to simplify a fraction:
- Find a common factor of the numerator and denominator. ...
- Divide both the numerator and denominator by the common factor.
- Repeat this process until there are no more common factors.
- The fraction is simplified when no more common factors exist.