# Subtracting fractions calculator

# Subtracting fractions

**Subtracting fractions involves finding a common denominator and then subtracting the numerators. The steps to subtract two fractions are as follows:**

- Find a common denominator: Find a common multiple of the denominators of the two fractions. This will be the least common multiple (LCM) of the denominators.
- Convert the fractions: Rewrite each fraction with the common denominator. To do this, multiply the numerator and denominator of each fraction by the appropriate factor so that the denominators are the same.
- Subtract the numerators: Once the fractions have a common denominator, subtract the numerators and write the result over the common denominator.
- Simplify: Simplify the resulting fraction, if necessary, by reducing it to lowest terms.

For example, let’s subtract 1/3 from 2/5:

**Step 1: Find a common denominator**

The LCM of 3 and 5 is 15.

**Step 2: Convert the fractions**

Rewrite 1/3 as 5/15 and 2/5 as 6/15.

Step 3: Subtract the numerators

6/15 – 5/15 = 1/15

Step 4: Simplify

The result, 1/15, is already in lowest terms, so we’re done. Therefore, 2/5 – 1/3 = 1/15.