Add 18/56 and 81/7
1st number: 18/56, 2nd number: 11 4/7
18/56 + 81/7 is 333/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
18/56 = 18 × 1/56 × 1 = 18/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
81/7 = 81 × 8/7 × 8 = 648/56 - Add the two like fractions:
18/56 + 648/56 = 18 + 648/56 = 666/56 - 666/56 simplified gives 333/28
- So, 18/56 + 81/7 = 333/28
In mixed form: 1125/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56+81/7 18/56+81/14 54/56+81/7 18/56+81/21 90/56+81/7 18/56+81/35 18/56+81/49