Add 2/8 and 81/7
1st number: 2/8, 2nd number: 11 4/7
2/8 + 81/7 is 331/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
2/8 = 2 × 7/8 × 7 = 14/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
81/7 = 81 × 8/7 × 8 = 648/56 - Add the two like fractions:
14/56 + 648/56 = 14 + 648/56 = 662/56 - 662/56 simplified gives 331/28
- So, 2/8 + 81/7 = 331/28
In mixed form: 1123/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8+81/7 2/16+81/7 2/8+81/14 6/8+81/7 2/24+81/7 2/8+81/21 10/8+81/7 2/40+81/7 2/8+81/35 14/8+81/7 2/56+81/7 2/8+81/49