Add 15/25 and 21/27
15/25 + 21/27 is 62/45.
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,
15/25 = 15 × 27/25 × 27 = 405/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
21/27 = 21 × 25/27 × 25 = 525/675 - Add the two like fractions:
405/675 + 525/675 = 405 + 525/675 = 930/675 - 930/675 simplified gives 62/45
- So, 15/25 + 21/27 = 62/45
In mixed form: 117/45
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