Add 21/25 and 18/27
21/25 + 18/27 is 113/75.
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,
18/27 = 18 × 25/27 × 25 = 450/675 - Add the two like fractions:
567/675 + 450/675 = 567 + 450/675 = 1017/675 - 1017/675 simplified gives 113/75
- So, 21/25 + 18/27 = 113/75
In mixed form: 138/75
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