Add 25/28 and 7/72
25/28 + 7/72 is 499/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
25/28 = 25 × 18/28 × 18 = 450/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
7/72 = 7 × 7/72 × 7 = 49/504 - Add the two like fractions:
450/504 + 49/504 = 450 + 49/504 = 499/504 - So, 25/28 + 7/72 = 499/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+7/72 25/28+14/72 25/56+7/72 75/28+7/72 25/28+21/72 25/84+7/72 25/28+35/72 25/28+49/72