Add 24/21 and 25/72
1st number: 1 3/21, 2nd number: 25/72
24/21 + 25/72 is 751/504.
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,
24/21 = 24 × 24/21 × 24 = 576/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
25/72 = 25 × 7/72 × 7 = 175/504 - Add the two like fractions:
576/504 + 175/504 = 576 + 175/504 = 751/504 - So, 24/21 + 25/72 = 751/504
In mixed form: 1247/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+25/72 24/21+50/72 24/42+25/72 72/21+25/72 24/21+75/72 24/63+25/72