Add 3/28 and 28/72
3/28 + 28/72 is 125/252.
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,
3/28 = 3 × 18/28 × 18 = 54/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504 - Add the two like fractions:
54/504 + 196/504 = 54 + 196/504 = 250/504 - 250/504 simplified gives 125/252
- So, 3/28 + 28/72 = 125/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28+28/72 3/28+56/72 3/56+28/72 9/28+28/72 3/28+84/72 3/84+28/72 15/28+28/72 21/28+28/72