Add 5/7 and 72/81
5/7 + 72/81 is 101/63.
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,
5/7 = 5 × 81/7 × 81 = 405/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
72/81 = 72 × 7/81 × 7 = 504/567 - Add the two like fractions:
405/567 + 504/567 = 405 + 504/567 = 909/567 - 909/567 simplified gives 101/63
- So, 5/7 + 72/81 = 101/63
In mixed form: 138/63
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