Add 8/81 and 9/49
8/81 + 9/49 is 1121/3969.
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,
8/81 = 8 × 49/81 × 49 = 392/3969 - Likewise, for the 2nd fraction, since 49 × 81 = 3969,
9/49 = 9 × 81/49 × 81 = 729/3969 - Add the two like fractions:
392/3969 + 729/3969 = 392 + 729/3969 = 1121/3969 - So, 8/81 + 9/49 = 1121/3969
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/81+9/49 8/81+18/49 8/81+9/98 24/81+9/49 8/81+27/49 40/81+9/49 8/81+45/49 56/81+9/49 8/81+63/49