To subtract fractions with the same denominator, simply subtract the numerators and keep the denominator the same.
Here's a breakdown of the process:
- Identify the Fractions: Ensure the fractions have the same denominator (the bottom number).
- Subtract the Numerators: Subtract the numerator (the top number) of the second fraction from the numerator of the first fraction.
- Keep the Denominator: The denominator of the resulting fraction will be the same as the original fractions.
- Simplify (if possible): Reduce the resulting fraction to its simplest form by dividing both the numerator and denominator by their greatest common factor (GCF).
Example:
Let's say you want to subtract 3/5 from 4/5.
- Fractions: 4/5 and 3/5 (same denominator)
- Subtract Numerators: 4 - 3 = 1
- Keep Denominator: The denominator remains 5.
- Result: 1/5
Therefore, 4/5 - 3/5 = 1/5. This fraction is already in its simplest form.
In Summary:
When subtracting fractions with the same denominator, focus on subtracting the numerators while retaining the common denominator. Remember to simplify your answer if possible.