How To Add And Subtract Fractions

How to add and subtract fractions check.

How to add and subtract fractions. How to add fractions method 1. Add the numerators together. Write out your equation. If we take the above example 15.

Find a common denominator. To add or subtract fractions the denominators must be the same. Fractions adding and subtracting fractions with different denominators adding and subtracting fractions with different denominators. Add the numerators but leave the denominators alone.

Check to see if the fractions have the same denominator. These are called the denominators. This is a bit tricky but youll think its easy once you get used to it. The numerator is the top number of any fraction.

If the denominator of the two fractions that you are adding or subtracting is the same put. Multiply to get each numerator over the same denominator. Once they have the same denominator add or subtract the numbers in the numerator. Do your denominators match.

If not multiply them together and balance the numerators accordingly add or subtract using the numerators keeping the denominator the same. Well find the least common denominator first since thats generally the best way to go about it. Write your answer with the new numerator over the denominator. If they dont have the same denominator then convert them to equivalent fractions with the same denominator.

See lesson 22 examples 1 2 3 and especially example 4. Page 1 of 3. Its easy to add and subtract fractions when the numbers on the bottom are the same.