Add 8/81 and 90/21
1st number: 8/81, 2nd number: 4 6/21
8/81 + 90/21 is 2486/567.
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,
8/81 = 8 × 7/81 × 7 = 56/567 - Likewise, for the 2nd fraction, since 21 × 27 = 567,
90/21 = 90 × 27/21 × 27 = 2430/567 - Add the two like fractions:
56/567 + 2430/567 = 56 + 2430/567 = 2486/567 - So, 8/81 + 90/21 = 2486/567
In mixed form: 4218/567
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