Add 15/56 and 81/28
1st number: 15/56, 2nd number: 2 25/28
15/56 + 81/28 is 177/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
15/56 = 15 × 1/56 × 1 = 15/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
81/28 = 81 × 2/28 × 2 = 162/56 - Add the two like fractions:
15/56 + 162/56 = 15 + 162/56 = 177/56 - So, 15/56 + 81/28 = 177/56
In mixed form: 39/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+81/28 15/56+81/56 45/56+81/28 15/56+81/84 75/56+81/28