Add 56/21 and 81/60
1st number: 2 14/21, 2nd number: 1 21/60
56/21 + 81/60 is 241/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
56/21 = 56 × 20/21 × 20 = 1120/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
81/60 = 81 × 7/60 × 7 = 567/420 - Add the two like fractions:
1120/420 + 567/420 = 1120 + 567/420 = 1687/420 - 1687/420 simplified gives 241/60
- So, 56/21 + 81/60 = 241/60
In mixed form: 41/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+81/60 56/63+81/60