Add 4/81 and 2/21
4/81 + 2/21 is 82/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 21 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
4/81 = 4 × 7/81 × 7 = 28/567 - Likewise, for the 2nd fraction, since 21 × 27 = 567,
2/21 = 2 × 27/21 × 27 = 54/567 - Add the two like fractions:
28/567 + 54/567 = 28 + 54/567 = 82/567 - So, 4/81 + 2/21 = 82/567
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