Add 20/14 and 81/28
1st number: 1 6/14, 2nd number: 2 25/28
20/14 + 81/28 is 121/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 14 × 2 = 28,
20/14 = 20 × 2/14 × 2 = 40/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
81/28 = 81 × 1/28 × 1 = 81/28 - Add the two like fractions:
40/28 + 81/28 = 40 + 81/28 = 121/28 - So, 20/14 + 81/28 = 121/28
In mixed form: 49/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14+81/28 20/28+81/28 20/14+81/56 60/14+81/28 20/42+81/28 20/14+81/84 20/70+81/28 20/98+81/28