Add 63/4 and 42/81
1st number: 15 3/4, 2nd number: 42/81
63/4 + 42/81 is 1757/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 4 × 81 = 324,
63/4 = 63 × 81/4 × 81 = 5103/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
42/81 = 42 × 4/81 × 4 = 168/324 - Add the two like fractions:
5103/324 + 168/324 = 5103 + 168/324 = 5271/324 - 5271/324 simplified gives 1757/108
- So, 63/4 + 42/81 = 1757/108
In mixed form: 1629/108
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