Add 16/81 and 42/12
1st number: 16/81, 2nd number: 3 6/12
16/81 + 42/12 is 599/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
16/81 = 16 × 4/81 × 4 = 64/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
42/12 = 42 × 27/12 × 27 = 1134/324 - Add the two like fractions:
64/324 + 1134/324 = 64 + 1134/324 = 1198/324 - 1198/324 simplified gives 599/162
- So, 16/81 + 42/12 = 599/162
In mixed form: 3113/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/81+42/12 16/81+84/12 16/81+42/24 48/81+42/12 16/81+42/36 80/81+42/12 16/81+42/60 16/81+42/84