Add 81/7 and 45/81
1st number: 11 4/7, 2nd number: 45/81
81/7 + 45/81 is 764/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
81/7 = 81 × 81/7 × 81 = 6561/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
45/81 = 45 × 7/81 × 7 = 315/567 - Add the two like fractions:
6561/567 + 315/567 = 6561 + 315/567 = 6876/567 - 6876/567 simplified gives 764/63
- So, 81/7 + 45/81 = 764/63
In mixed form: 128/63
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