How do you subtract improper fractions with unlike denominators?
Mia Horton
Updated on January 11, 2026
How To Subtract Fractions With Different Denominators
- Step 1: Find the least common denominator. The least common denominator (LCD) is the lowest common multiple of the two denominators you're working with. ...
- Step 2: Find the equivalent fraction. ...
- Step 3: Subtract the new numerators. ...
- Step 4: Simplify the answer if necessary.
How do you subtract with different denominators?
How To Subtract Fractions With Different Denominators
- Step 1: Find the least common denominator. The least common denominator (LCD) is the lowest common multiple of the two denominators you're working with. ...
- Step 2: Find the equivalent fraction. ...
- Step 3: Subtract the new numerators. ...
- Step 4: Simplify the answer if necessary.
How do you subtract fractions with different denominators for dummies?
Subtract fractions with the easy methodHere's the easy way to subtract fractions that have different denominators: Cross-multiply the two fractions and subtract the second number from the first to get the numerator of the answer. After you cross-multiply, be sure to subtract in the correct order.
What if the denominator is not the same?
Adding Fractions: If the denominators are not the same, you must find the common denominator by finding the least common multiple (LCM). Subtracting Fractions: If the denominators are not the same, you must find the common denominator by finding the least common multiple (LCM).How do you subtract mixed fractions with variables?
The steps we follow to subtract fractions with variables are as follows:
- Find a common denominator by multiplying the two denominators together.
- Manipulate the fractions so that they both have the common denominator.
- Once you have a common denominator in both fractions, subtract the numerator, and finally…