Add 30/8 and 81/14
1st number: 3 6/8, 2nd number: 5 11/14
30/8 + 81/14 is 267/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 14 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
30/8 = 30 × 7/8 × 7 = 210/56 - Likewise, for the 2nd fraction, since 14 × 4 = 56,
81/14 = 81 × 4/14 × 4 = 324/56 - Add the two like fractions:
210/56 + 324/56 = 210 + 324/56 = 534/56 - 534/56 simplified gives 267/28
- So, 30/8 + 81/14 = 267/28
In mixed form: 915/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+81/14 30/16+81/14 30/8+81/28 90/8+81/14 30/24+81/14 30/8+81/42 30/40+81/14 30/8+81/70 30/56+81/14 30/8+81/98