Add 84/63 and 81/4
1st number: 1 21/63, 2nd number: 20 1/4
84/63 + 81/4 is 259/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 4 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252 - Likewise, for the 2nd fraction, since 4 × 63 = 252,
81/4 = 81 × 63/4 × 63 = 5103/252 - Add the two like fractions:
336/252 + 5103/252 = 336 + 5103/252 = 5439/252 - 5439/252 simplified gives 259/12
- So, 84/63 + 81/4 = 259/12
In mixed form: 217/12
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