Add 5/15 and 56/81
5/15 + 56/81 is 83/81.
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,
5/15 = 5 × 27/15 × 27 = 135/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
56/81 = 56 × 5/81 × 5 = 280/405 - Add the two like fractions:
135/405 + 280/405 = 135 + 280/405 = 415/405 - 415/405 simplified gives 83/81
- So, 5/15 + 56/81 = 83/81
In mixed form: 12/81
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