Add 4/7 and 81/56
1st number: 4/7, 2nd number: 1 25/56
4/7 + 81/56 is 113/56.
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,
4/7 = 4 × 8/7 × 8 = 32/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
81/56 = 81 × 1/56 × 1 = 81/56 - Add the two like fractions:
32/56 + 81/56 = 32 + 81/56 = 113/56 - So, 4/7 + 81/56 = 113/56
In mixed form: 21/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/7+81/56 4/14+81/56 12/7+81/56 4/21+81/56 20/7+81/56 4/35+81/56 28/7+81/56 4/49+81/56