To add fractions, you must first find the least common denominator (LCD) and rewrite the fractions with that denominator. Then, add the numerators and put the sum over the common denominator. For example, to add 6/7 + 1/2: 1) The LCD is 14 2) Rewrite as 12/14 + 7/14 3) Add the numerators: 12 + 7 = 19 4) Write the sum over the LCD: 19/14 5) Simplify the resulting improper fraction to get the final answer of 1 5/14.