Add 7/81 and 63/4
1st number: 7/81, 2nd number: 15 3/4
7/81 + 63/4 is 5131/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
7/81 = 7 × 4/81 × 4 = 28/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
63/4 = 63 × 81/4 × 81 = 5103/324 - Add the two like fractions:
28/324 + 5103/324 = 28 + 5103/324 = 5131/324 - So, 7/81 + 63/4 = 5131/324
In mixed form: 15271/324
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