Add 15/7 and 27/56
1st number: 2 1/7, 2nd number: 27/56
15/7 + 27/56 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
15/7 = 15 × 8/7 × 8 = 120/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
27/56 = 27 × 1/56 × 1 = 27/56 - Add the two like fractions:
120/56 + 27/56 = 120 + 27/56 = 147/56 - 147/56 simplified gives 21/8
- So, 15/7 + 27/56 = 21/8
In mixed form: 25/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+27/56 15/7+54/56 15/14+27/56 45/7+27/56 15/7+81/56 15/21+27/56 75/7+27/56 15/35+27/56 15/49+27/56