Add 15/72 and 63/28
1st number: 15/72, 2nd number: 2 7/28
15/72 + 63/28 is 59/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 28 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 28 × 18 = 504,
63/28 = 63 × 18/28 × 18 = 1134/504 - Add the two like fractions:
105/504 + 1134/504 = 105 + 1134/504 = 1239/504 - 1239/504 simplified gives 59/24
- So, 15/72 + 63/28 = 59/24
In mixed form: 211/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72+63/28 15/72+63/56 45/72+63/28 15/72+63/84 75/72+63/28