Add 5/81 and 40/21
1st number: 5/81, 2nd number: 1 19/21
5/81 + 40/21 is 1115/567.
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,
5/81 = 5 × 7/81 × 7 = 35/567 - Likewise, for the 2nd fraction, since 21 × 27 = 567,
40/21 = 40 × 27/21 × 27 = 1080/567 - Add the two like fractions:
35/567 + 1080/567 = 35 + 1080/567 = 1115/567 - So, 5/81 + 40/21 = 1115/567
In mixed form: 1548/567
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