Add 84/63 and 7/81
1st number: 1 21/63, 2nd number: 7/81
84/63 + 7/81 is 115/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 63 × 9 = 567,
84/63 = 84 × 9/63 × 9 = 756/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
7/81 = 7 × 7/81 × 7 = 49/567 - Add the two like fractions:
756/567 + 49/567 = 756 + 49/567 = 805/567 - 805/567 simplified gives 115/81
- So, 84/63 + 7/81 = 115/81
In mixed form: 134/81
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