Add 15/56 and 42/5
1st number: 15/56, 2nd number: 8 2/5
15/56 + 42/5 is 2427/280.
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,
42/5 = 42 × 56/5 × 56 = 2352/280 - Add the two like fractions:
75/280 + 2352/280 = 75 + 2352/280 = 2427/280 - So, 15/56 + 42/5 = 2427/280
In mixed form: 8187/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/56+42/5 15/56+84/5 15/56+42/10 45/56+42/5 15/56+42/15 75/56+42/5 15/56+42/25 15/56+42/35