Add 15/4 and 3/81
1st number: 3 3/4, 2nd number: 3/81
15/4 + 3/81 is 409/108.
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,
15/4 = 15 × 81/4 × 81 = 1215/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
3/81 = 3 × 4/81 × 4 = 12/324 - Add the two like fractions:
1215/324 + 12/324 = 1215 + 12/324 = 1227/324 - 1227/324 simplified gives 409/108
- So, 15/4 + 3/81 = 409/108
In mixed form: 385/108
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