Add 81/84 and 80/7
1st number: 81/84, 2nd number: 11 3/7
81/84 + 80/7 is 347/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
81/84 = 81 × 1/84 × 1 = 81/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
80/7 = 80 × 12/7 × 12 = 960/84 - Add the two like fractions:
81/84 + 960/84 = 81 + 960/84 = 1041/84 - 1041/84 simplified gives 347/28
- So, 81/84 + 80/7 = 347/28
In mixed form: 1211/28
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