Add 56/21 and 10/72
1st number: 2 14/21, 2nd number: 10/72
56/21 + 10/72 is 101/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
56/21 = 56 × 24/21 × 24 = 1344/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
10/72 = 10 × 7/72 × 7 = 70/504 - Add the two like fractions:
1344/504 + 70/504 = 1344 + 70/504 = 1414/504 - 1414/504 simplified gives 101/36
- So, 56/21 + 10/72 = 101/36
In mixed form: 229/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/21+20/72 56/42+10/72 56/21+30/72 56/63+10/72 56/21+50/72 56/21+70/72