Add 72/12 and 21/54
1st number: 6 0/12, 2nd number: 21/54
72/12 + 21/54 is 115/18.
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,
72/12 = 72 × 9/12 × 9 = 648/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108 - Add the two like fractions:
648/108 + 42/108 = 648 + 42/108 = 690/108 - 690/108 simplified gives 115/18
- So, 72/12 + 21/54 = 115/18
In mixed form: 67/18
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