Here's how to subtract 2/11 from 1/5:


Step 1We can't subtract two fractions with different denominators. So you need to get a common denominator. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator. So we multiply 1 by 11, and get 11. Then we multiply 2 by 5, and get 10. Next we give both terms new denominators  5 × 11 = 55. So now our fractions look like this:


Step 2Since our denominators match, we can subtract the numerators. 11 − 10 = 1 So the answer is:


Step 3Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction? To find out, we try dividing it by 2... No good. 2 is larger than 1. So we're done reducing. There you have it! The final answer is:
