Add 81/10 and 18/28
1st number: 8 1/10, 2nd number: 18/28
81/10 + 18/28 is 306/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
81/10 = 81 × 14/10 × 14 = 1134/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
18/28 = 18 × 5/28 × 5 = 90/140 - Add the two like fractions:
1134/140 + 90/140 = 1134 + 90/140 = 1224/140 - 1224/140 simplified gives 306/35
- So, 81/10 + 18/28 = 306/35
In mixed form: 826/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/10+36/28 81/20+18/28 81/10+18/56 81/10+54/28 81/30+18/28 81/10+18/84 81/10+90/28 81/50+18/28 81/70+18/28