To add or subtract fractions with different denominators: 1) Find the least common denominator (LCD) of the fractions, which is the smallest number that is a multiple of all the denominators. 2) Convert the fractions to equivalent fractions with the LCD as the denominator by multiplying the numerators and denominators by the same number. 3) Add or subtract the new numerators, keeping the common denominator, to obtain the final answer in simplest form.

1. Adding and Subtracting Fractions with Different Denominators By: T.V.

2. 1/2 + 2/4 + L.C.D. 2, 4 ,6, 8 ,10, 12 ,14, 16 ,18, 20 , L.C.D. 4,8,12,16,20,24,28,32,36,40

3. 2/4 + 2/4 First you need to find the Least Common Denominator. Then you do whatever you did to the denominator you do to the numerator. After that you add the numerators and keep the denominator the same. Then you get the answer. The answer here is 1. + =

4. 1/6 + 1/12 - L.C.D. 6, 12 ,18, 24 ,30, 36 ,42, 48 ,54, 60 L.C.D. 12,24,36,48,60,72,84,96,108,120

5. 2/12 – 1/12 - First you find the Least Common Denominator and then whatever you did to the denominator you do to the numerator. Then you subtract and you get the answer. In this problem the answer is 1/12.