Add 81/63 and 81/84
1st number: 1 18/63, 2nd number: 81/84
81/63 + 81/84 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
81/63 = 81 × 4/63 × 4 = 324/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
81/84 = 81 × 3/84 × 3 = 243/252 - Add the two like fractions:
324/252 + 243/252 = 324 + 243/252 = 567/252 - 567/252 simplified gives 9/4
- So, 81/63 + 81/84 = 9/4
In mixed form: 21/4
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