Add 81/12 and 42/14
1st number: 6 9/12, 2nd number: 3 0/14
81/12 + 42/14 is 39/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 14 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
81/12 = 81 × 7/12 × 7 = 567/84 - Likewise, for the 2nd fraction, since 14 × 6 = 84,
42/14 = 42 × 6/14 × 6 = 252/84 - Add the two like fractions:
567/84 + 252/84 = 567 + 252/84 = 819/84 - 819/84 simplified gives 39/4
- So, 81/12 + 42/14 = 39/4
In mixed form: 93/4
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