Add 3/56 and 21/10
1st number: 3/56, 2nd number: 2 1/10
3/56 + 21/10 is 603/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 10 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
3/56 = 3 × 5/56 × 5 = 15/280 - Likewise, for the 2nd fraction, since 10 × 28 = 280,
21/10 = 21 × 28/10 × 28 = 588/280 - Add the two like fractions:
15/280 + 588/280 = 15 + 588/280 = 603/280 - So, 3/56 + 21/10 = 603/280
In mixed form: 243/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/56+21/10 3/56+42/10 3/56+21/20 9/56+21/10 3/56+63/10 3/56+21/30 15/56+21/10 3/56+21/50 21/56+21/10 3/56+21/70