Add 15/56 and 9/8
1st number: 15/56, 2nd number: 1 1/8
15/56 + 9/8 is 39/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 8 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 8 × 7 = 56,
9/8 = 9 × 7/8 × 7 = 63/56 - Add the two like fractions:
15/56 + 63/56 = 15 + 63/56 = 78/56 - 78/56 simplified gives 39/28
- So, 15/56 + 9/8 = 39/28
In mixed form: 111/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+9/8 15/56+18/8 15/56+9/16 45/56+9/8 15/56+27/8 15/56+9/24 75/56+9/8 15/56+45/8 15/56+9/40 15/56+63/8 15/56+9/56