Add 20/12 and 81/84
1st number: 1 8/12, 2nd number: 81/84
20/12 + 81/84 is 221/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
20/12 = 20 × 7/12 × 7 = 140/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
81/84 = 81 × 1/84 × 1 = 81/84 - Add the two like fractions:
140/84 + 81/84 = 140 + 81/84 = 221/84 - So, 20/12 + 81/84 = 221/84
In mixed form: 253/84
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