Add 28/2 and 81/7
1st number: 14 0/2, 2nd number: 11 4/7
28/2 + 81/7 is 179/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
28/2 = 28 × 7/2 × 7 = 196/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
81/7 = 81 × 2/7 × 2 = 162/14 - Add the two like fractions:
196/14 + 162/14 = 196 + 162/14 = 358/14 - 358/14 simplified gives 179/7
- So, 28/2 + 81/7 = 179/7
In mixed form: 254/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/2+81/7 28/4+81/7 28/2+81/14 84/2+81/7 28/6+81/7 28/2+81/21 28/10+81/7 28/2+81/35 28/14+81/7 28/2+81/49