Add 14/21 and 81/56
1st number: 14/21, 2nd number: 1 25/56
14/21 + 81/56 is 355/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
14/21 = 14 × 8/21 × 8 = 112/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
81/56 = 81 × 3/56 × 3 = 243/168 - Add the two like fractions:
112/168 + 243/168 = 112 + 243/168 = 355/168 - So, 14/21 + 81/56 = 355/168
In mixed form: 219/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+81/56 14/42+81/56 42/21+81/56 14/63+81/56 70/21+81/56 98/21+81/56