Add 81/12 and 20/63
1st number: 6 9/12, 2nd number: 20/63
81/12 + 20/63 is 1781/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
81/12 = 81 × 21/12 × 21 = 1701/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Add the two like fractions:
1701/252 + 80/252 = 1701 + 80/252 = 1781/252 - So, 81/12 + 20/63 = 1781/252
In mixed form: 717/252
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