Add 21/14 and 60/81
1st number: 1 7/14, 2nd number: 60/81
21/14 + 60/81 is 121/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 14 × 81 = 1134,
21/14 = 21 × 81/14 × 81 = 1701/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
60/81 = 60 × 14/81 × 14 = 840/1134 - Add the two like fractions:
1701/1134 + 840/1134 = 1701 + 840/1134 = 2541/1134 - 2541/1134 simplified gives 121/54
- So, 21/14 + 60/81 = 121/54
In mixed form: 213/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+60/81 21/28+60/81 63/14+60/81 21/42+60/81 21/70+60/81 21/98+60/81