Add 40/81 and 45/21
1st number: 40/81, 2nd number: 2 3/21
40/81 + 45/21 is 1495/567.
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,
40/81 = 40 × 7/81 × 7 = 280/567 - Likewise, for the 2nd fraction, since 21 × 27 = 567,
45/21 = 45 × 27/21 × 27 = 1215/567 - Add the two like fractions:
280/567 + 1215/567 = 280 + 1215/567 = 1495/567 - So, 40/81 + 45/21 = 1495/567
In mixed form: 2361/567
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