Simplifying Fractions 6

With 13 fractions to reduce, this is the longest set in the simplify series, and most of the prompts use a denominator of 20. You'll tackle things like 6/20 and 15/20, cutting the top and bottom down by their common factors until the fraction is as small as it can possibly be.

Twenty is a friendly number to practice with because it shares factors with so many numerators. Keep an eye out for 10/20, which is just a half in disguise. The more of these you do, the faster you'll start spotting the shortcuts. Recommended level: beginner to intermediate.