Add 42/7 and 7/81
1st number: 6 0/7, 2nd number: 7/81
42/7 + 7/81 is 493/81.
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,
42/7 = 42 × 81/7 × 81 = 3402/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
7/81 = 7 × 7/81 × 7 = 49/567 - Add the two like fractions:
3402/567 + 49/567 = 3402 + 49/567 = 3451/567 - 3451/567 simplified gives 493/81
- So, 42/7 + 7/81 = 493/81
In mixed form: 67/81
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