Add 80/81 and 1/15
80/81 + 1/15 is 427/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 15 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
80/81 = 80 × 5/81 × 5 = 400/405 - Likewise, for the 2nd fraction, since 15 × 27 = 405,
1/15 = 1 × 27/15 × 27 = 27/405 - Add the two like fractions:
400/405 + 27/405 = 400 + 27/405 = 427/405 - So, 80/81 + 1/15 = 427/405
In mixed form: 122/405
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