Add 5/54 and 28/21
1st number: 5/54, 2nd number: 1 7/21
5/54 + 28/21 is 77/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
5/54 = 5 × 7/54 × 7 = 35/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
28/21 = 28 × 18/21 × 18 = 504/378 - Add the two like fractions:
35/378 + 504/378 = 35 + 504/378 = 539/378 - 539/378 simplified gives 77/54
- So, 5/54 + 28/21 = 77/54
In mixed form: 123/54
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