Add 28/54 and 21/4
1st number: 28/54, 2nd number: 5 1/4
28/54 + 21/4 is 623/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 54 × 2 = 108,
28/54 = 28 × 2/54 × 2 = 56/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
21/4 = 21 × 27/4 × 27 = 567/108 - Add the two like fractions:
56/108 + 567/108 = 56 + 567/108 = 623/108 - So, 28/54 + 21/4 = 623/108
In mixed form: 583/108
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