Add 7/16 and 49/81
7/16 + 49/81 is 1351/1296.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
7/16 = 7 × 81/16 × 81 = 567/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
49/81 = 49 × 16/81 × 16 = 784/1296 - Add the two like fractions:
567/1296 + 784/1296 = 567 + 784/1296 = 1351/1296 - So, 7/16 + 49/81 = 1351/1296
In mixed form: 155/1296
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/16+49/81 7/16+98/81 7/32+49/81 21/16+49/81 7/48+49/81 35/16+49/81 7/80+49/81 49/16+49/81