13+18\dfrac{1}{3} + \dfrac{1}{8}
13+18\dfrac{1}{3} + \dfrac{1}{8}
Since these fractions have different denominators, we need to find the least common multiple of the denominators
The least common multiple of 3 and 8 is 24, so we need to multiply to make each of the denominators = 24
13∗88=824\dfrac{1}{3} * \dfrac{8}{8} = \dfrac{8}{24}
18∗33=324\dfrac{1}{8} * \dfrac{3}{3} = \dfrac{3}{24}
Since these fractions have the same denominator, we can just add the numerators
824+324=1124\dfrac{8}{24} + \dfrac{3}{24} = \dfrac{11}{24}