Add 4/81 and 63/21
1st number: 4/81, 2nd number: 3 0/21
4/81 + 63/21 is 247/81.
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,
4/81 = 4 × 7/81 × 7 = 28/567 - Likewise, for the 2nd fraction, since 21 × 27 = 567,
63/21 = 63 × 27/21 × 27 = 1701/567 - Add the two like fractions:
28/567 + 1701/567 = 28 + 1701/567 = 1729/567 - 1729/567 simplified gives 247/81
- So, 4/81 + 63/21 = 247/81
In mixed form: 34/81
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