Add 80/56 and 15/18
1st number: 1 24/56, 2nd number: 15/18
80/56 + 15/18 is 95/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
80/56 = 80 × 9/56 × 9 = 720/504 - Likewise, for the 2nd fraction, since 18 × 28 = 504,
15/18 = 15 × 28/18 × 28 = 420/504 - Add the two like fractions:
720/504 + 420/504 = 720 + 420/504 = 1140/504 - 1140/504 simplified gives 95/42
- So, 80/56 + 15/18 = 95/42
In mixed form: 211/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/56+30/18 80/56+15/36 80/56+45/18 80/56+15/54 80/56+75/18 80/56+15/90