Add 21/25 and 42/27
1st number: 21/25, 2nd number: 1 15/27
21/25 + 42/27 is 539/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 27 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 25 × 27 = 675,
21/25 = 21 × 27/25 × 27 = 567/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
42/27 = 42 × 25/27 × 25 = 1050/675 - Add the two like fractions:
567/675 + 1050/675 = 567 + 1050/675 = 1617/675 - 1617/675 simplified gives 539/225
- So, 21/25 + 42/27 = 539/225
In mixed form: 289/225
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