Add 9/12 and 28/54
9/12 + 28/54 is 137/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
9/12 = 9 × 9/12 × 9 = 81/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
28/54 = 28 × 2/54 × 2 = 56/108 - Add the two like fractions:
81/108 + 56/108 = 81 + 56/108 = 137/108 - So, 9/12 + 28/54 = 137/108
In mixed form: 129/108
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