Add 15/6 and 42/81
1st number: 2 3/6, 2nd number: 42/81
15/6 + 42/81 is 163/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
15/6 = 15 × 27/6 × 27 = 405/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
42/81 = 42 × 2/81 × 2 = 84/162 - Add the two like fractions:
405/162 + 84/162 = 405 + 84/162 = 489/162 - 489/162 simplified gives 163/54
- So, 15/6 + 42/81 = 163/54
In mixed form: 31/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/6+42/81 15/6+84/81 15/12+42/81 45/6+42/81 15/18+42/81 75/6+42/81 15/30+42/81 15/42+42/81