Add 1/15 and 21/25
1/15 + 21/25 is 68/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
1/15 = 1 × 5/15 × 5 = 5/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
21/25 = 21 × 3/25 × 3 = 63/75 - Add the two like fractions:
5/75 + 63/75 = 5 + 63/75 = 68/75 - So, 1/15 + 21/25 = 68/75
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