Add 7/81 and 5/56
7/81 + 5/56 is 797/4536.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 56 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 81 × 56 = 4536,
7/81 = 7 × 56/81 × 56 = 392/4536 - Likewise, for the 2nd fraction, since 56 × 81 = 4536,
5/56 = 5 × 81/56 × 81 = 405/4536 - Add the two like fractions:
392/4536 + 405/4536 = 392 + 405/4536 = 797/4536 - So, 7/81 + 5/56 = 797/4536
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/81+5/56 7/81+10/56 21/81+5/56 7/81+15/56 35/81+5/56 7/81+25/56 49/81+5/56 7/81+35/56