Add 4/28 and 81/10
1st number: 4/28, 2nd number: 8 1/10
4/28 + 81/10 is 577/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
4/28 = 4 × 5/28 × 5 = 20/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
81/10 = 81 × 14/10 × 14 = 1134/140 - Add the two like fractions:
20/140 + 1134/140 = 20 + 1134/140 = 1154/140 - 1154/140 simplified gives 577/70
- So, 4/28 + 81/10 = 577/70
In mixed form: 817/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28+81/10 4/56+81/10 4/28+81/20 12/28+81/10 4/84+81/10 4/28+81/30 20/28+81/10 4/28+81/50 4/28+81/70