1.Find the LCD

2. Divide the denominator to the LCD

3.Multiply the answer by the numerator

4.The outcome is Answer/LCD

5.Do the same with the other

6.Add them

7.Simplify if needed

Example:

1/4 and 1/6

the LCD of 4 and 6 is 24

4 divided by 24 is 6 then 6 times 1 = 6

the answer is 6/24

6 divided by 24 is 4 then 4 times 1 = 4

the answer is 4/24

the outcome:

6/24 + 4/24 = 10/24 simplify = 5/12

2. Divide the denominator to the LCD

3.Multiply the answer by the numerator

4.The outcome is Answer/LCD

5.Do the same with the other

6.Add them

7.Simplify if needed

Example:

1/4 and 1/6

the LCD of 4 and 6 is 24

4 divided by 24 is 6 then 6 times 1 = 6

the answer is 6/24

6 divided by 24 is 4 then 4 times 1 = 4

the answer is 4/24

the outcome:

6/24 + 4/24 = 10/24 simplify = 5/12