Add 18/21 and 16/81
18/21 + 16/81 is 598/567.
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,
18/21 = 18 × 27/21 × 27 = 486/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
16/81 = 16 × 7/81 × 7 = 112/567 - Add the two like fractions:
486/567 + 112/567 = 486 + 112/567 = 598/567 - So, 18/21 + 16/81 = 598/567
In mixed form: 131/567
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