12+14\dfrac{1}{2} + \dfrac{1}{4}
12+14\dfrac{1}{2} + \dfrac{1}{4}
Since these fractions have different denominators, we need to find the least common multiple of the denominators
The least common multiple of 2 and 4 is 4, so we need to multiply to make each of the denominators = 4
12∗22=24\dfrac{1}{2} * \dfrac{2}{2} = \dfrac{2}{4}
14∗11=14\dfrac{1}{4} * \dfrac{1}{1} = \dfrac{1}{4}
Since these fractions have the same denominator, we can just add the numerators
24+14=34\dfrac{2}{4} + \dfrac{1}{4} = \dfrac{3}{4}