Add 3/49 and 8/81
3/49 + 8/81 is 635/3969.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 81 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 49 × 81 = 3969,
3/49 = 3 × 81/49 × 81 = 243/3969 - Likewise, for the 2nd fraction, since 81 × 49 = 3969,
8/81 = 8 × 49/81 × 49 = 392/3969 - Add the two like fractions:
243/3969 + 392/3969 = 243 + 392/3969 = 635/3969 - So, 3/49 + 8/81 = 635/3969
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/49+8/81 3/49+16/81 3/98+8/81 9/49+8/81 3/49+24/81 15/49+8/81 3/49+40/81 21/49+8/81 3/49+56/81