Add 2/81 and 72/49
1st number: 2/81, 2nd number: 1 23/49
2/81 + 72/49 is 5930/3969.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 49 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 81 × 49 = 3969,
2/81 = 2 × 49/81 × 49 = 98/3969 - Likewise, for the 2nd fraction, since 49 × 81 = 3969,
72/49 = 72 × 81/49 × 81 = 5832/3969 - Add the two like fractions:
98/3969 + 5832/3969 = 98 + 5832/3969 = 5930/3969 - So, 2/81 + 72/49 = 5930/3969
In mixed form: 11961/3969
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/81+72/49 2/81+72/98 6/81+72/49 10/81+72/49 14/81+72/49