1. Find a common denominator for 1/2 and 1/8. The value of that denominator will be a common multiple of 2 and 8. It is often convenient to use the Least Common Multiple (LCM), but any will do. In this case, 8 is a multiple of 2, so 8 is a suitable common denominator.
2. Express each fraction as an equivalent with the denominator found in the first step.
1/2 = 4/8
3/8 = 3/8
3. Add the numerators of these similar fractions. Express the sum over the denominator.
(4/8) + (3/8) = (4+3)/8 = 7/8
2. Express each fraction as an equivalent with the denominator found in the first step.
1/2 = 4/8
3/8 = 3/8
3. Add the numerators of these similar fractions. Express the sum over the denominator.
(4/8) + (3/8) = (4+3)/8 = 7/8
