Add 15/56 and 18/5
1st number: 15/56, 2nd number: 3 3/5
15/56 + 18/5 is 1083/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 5 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Likewise, for the 2nd fraction, since 5 × 56 = 280,
18/5 = 18 × 56/5 × 56 = 1008/280 - Add the two like fractions:
75/280 + 1008/280 = 75 + 1008/280 = 1083/280 - So, 15/56 + 18/5 = 1083/280
In mixed form: 3243/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+18/5 15/56+36/5 15/56+18/10 45/56+18/5 15/56+54/5 15/56+18/15 75/56+18/5 15/56+90/5 15/56+18/25 15/56+18/35