Add 10/15 and 28/81
10/15 + 28/81 is 82/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
10/15 = 10 × 27/15 × 27 = 270/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
28/81 = 28 × 5/81 × 5 = 140/405 - Add the two like fractions:
270/405 + 140/405 = 270 + 140/405 = 410/405 - 410/405 simplified gives 82/81
- So, 10/15 + 28/81 = 82/81
In mixed form: 11/81
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