More Lessons for Arithmetic

Math Worksheets

We can simplify a fraction by reducing it to its lowest term. That means to divide the numerator and denominator with the same number until the only common factor is 1, for example:

Usually, we divide the numerator and the denominator by the greatest common factor.

**Example :**

Express in lowest terms.

* Solution: *

**Step 1**: Find the greatest common factor of the numerator and the denominator.

**12:** 1, 2, 3, 4, **6**, 12

30: 1, 2, 3, 5, **6**, 10, 15, 30

The GCF is 6

**Step 2:** Divide the numerator and denominator of the fraction by the GCF.

is in lowest terms.

Reducing Fractions

This video shows how to reduce a fraction to lowest terms by using multiplication and cancellation.

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