Add 6/7 and 18/81
6/7 + 18/81 is 68/63.
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,
6/7 = 6 × 81/7 × 81 = 486/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
18/81 = 18 × 7/81 × 7 = 126/567 - Add the two like fractions:
486/567 + 126/567 = 486 + 126/567 = 612/567 - 612/567 simplified gives 68/63
- So, 6/7 + 18/81 = 68/63
In mixed form: 15/63
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