Add 81/84 and 56/63
81/84 + 56/63 is 467/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
81/84 = 81 × 3/84 × 3 = 243/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
56/63 = 56 × 4/63 × 4 = 224/252 - Add the two like fractions:
243/252 + 224/252 = 243 + 224/252 = 467/252 - So, 81/84 + 56/63 = 467/252
In mixed form: 1215/252
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