Add 6/21 and 54/81
6/21 + 54/81 is 20/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 21 × 27 = 567,
6/21 = 6 × 27/21 × 27 = 162/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
54/81 = 54 × 7/81 × 7 = 378/567 - Add the two like fractions:
162/567 + 378/567 = 162 + 378/567 = 540/567 - 540/567 simplified gives 20/21
- So, 6/21 + 54/81 = 20/21
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