Add 15/12 and 42/81
1st number: 1 3/12, 2nd number: 42/81
15/12 + 42/81 is 191/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
15/12 = 15 × 27/12 × 27 = 405/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
42/81 = 42 × 4/81 × 4 = 168/324 - Add the two like fractions:
405/324 + 168/324 = 405 + 168/324 = 573/324 - 573/324 simplified gives 191/108
- So, 15/12 + 42/81 = 191/108
In mixed form: 183/108
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