Add 14/21 and 27/20
1st number: 14/21, 2nd number: 1 7/20
14/21 + 27/20 is 121/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
14/21 = 14 × 20/21 × 20 = 280/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
27/20 = 27 × 21/20 × 21 = 567/420 - Add the two like fractions:
280/420 + 567/420 = 280 + 567/420 = 847/420 - 847/420 simplified gives 121/60
- So, 14/21 + 27/20 = 121/60
In mixed form: 21/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+27/20 14/21+54/20 14/42+27/20 14/21+27/40 42/21+27/20 14/21+81/20 14/63+27/20 14/21+27/60 70/21+27/20 98/21+27/20