Add 81/7 and 84/8
1st number: 11 4/7, 2nd number: 10 4/8
81/7 + 84/8 is 309/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
81/7 = 81 × 8/7 × 8 = 648/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
84/8 = 84 × 7/8 × 7 = 588/56 - Add the two like fractions:
648/56 + 588/56 = 648 + 588/56 = 1236/56 - 1236/56 simplified gives 309/14
- So, 81/7 + 84/8 = 309/14
In mixed form: 221/14
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