Add 15/72 and 25/56
15/72 + 25/56 is 55/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
15/72 = 15 × 7/72 × 7 = 105/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
25/56 = 25 × 9/56 × 9 = 225/504 - Add the two like fractions:
105/504 + 225/504 = 105 + 225/504 = 330/504 - 330/504 simplified gives 55/84
- So, 15/72 + 25/56 = 55/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72+25/56 15/72+50/56 45/72+25/56 15/72+75/56 75/72+25/56