Add 81/56 and 7/18
1st number: 1 25/56, 2nd number: 7/18
81/56 + 7/18 is 925/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
81/56 = 81 × 9/56 × 9 = 729/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
7/18 = 7 × 28/18 × 28 = 196/504 - Add the two like fractions:
729/504 + 196/504 = 729 + 196/504 = 925/504 - So, 81/56 + 7/18 = 925/504
In mixed form: 1421/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/56+14/18 81/56+7/36 81/56+21/18 81/56+7/54 81/56+35/18 81/56+7/90 81/56+49/18