If the denominator (the lower part of the fraction) is the same you just add the numerators (the upper part) and place the result over the common denominator.
Chat with our AI personalities
7/12 + 5/12 = 12/12 = 1
two and one-fourth
We convert this to twelfths to give: 10 twelfths + 4 twelfths + 9 twelfths = 23 twelfths or 1 and 11 twelfths.
nine and seven twelfths
We convert the fractions to twelfths: 1 + 8 twelfths + 9 twelfths. 1 + 17 twelfths 2 and 5 twelfths.