Add 3/28 and 4/72
3/28 + 4/72 is 41/252.
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,
4/72 = 4 × 7/72 × 7 = 28/504 - Add the two like fractions:
54/504 + 28/504 = 54 + 28/504 = 82/504 - 82/504 simplified gives 41/252
- So, 3/28 + 4/72 = 41/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28+4/72 3/28+8/72 3/56+4/72 9/28+4/72 3/28+12/72 3/84+4/72 15/28+4/72 3/28+20/72 21/28+4/72 3/28+28/72