Add 7/28 and 81/8
1st number: 7/28, 2nd number: 10 1/8
7/28 + 81/8 is 83/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
7/28 = 7 × 2/28 × 2 = 14/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
81/8 = 81 × 7/8 × 7 = 567/56 - Add the two like fractions:
14/56 + 567/56 = 14 + 567/56 = 581/56 - 581/56 simplified gives 83/8
- So, 7/28 + 81/8 = 83/8
In mixed form: 103/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+81/8 7/56+81/8 7/28+81/16 21/28+81/8 7/84+81/8 7/28+81/24 35/28+81/8 7/28+81/40 49/28+81/8 7/28+81/56