Add 81/42 and 2/3
1st number: 1 39/42, 2nd number: 2/3
81/42 + 2/3 is 109/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 3 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
81/42 = 81 × 1/42 × 1 = 81/42 - Likewise, for the 2nd fraction, since 3 × 14 = 42,
2/3 = 2 × 14/3 × 14 = 28/42 - Add the two like fractions:
81/42 + 28/42 = 81 + 28/42 = 109/42 - So, 81/42 + 2/3 = 109/42
In mixed form: 225/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/42+4/3 81/84+2/3 81/42+2/6 81/42+6/3 81/42+2/9 81/42+10/3 81/42+2/15 81/42+14/3 81/42+2/21