Add 81/5 and 15/56
1st number: 16 1/5, 2nd number: 15/56
81/5 + 15/56 is 4611/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 5 × 56 = 280,
81/5 = 81 × 56/5 × 56 = 4536/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Add the two like fractions:
4536/280 + 75/280 = 4536 + 75/280 = 4611/280 - So, 81/5 + 15/56 = 4611/280
In mixed form: 16131/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5+30/56 81/10+15/56 81/5+45/56 81/15+15/56 81/5+75/56 81/25+15/56 81/35+15/56