Add 50/21 and 15/56
1st number: 2 8/21, 2nd number: 15/56
50/21 + 15/56 is 445/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
50/21 = 50 × 8/21 × 8 = 400/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
15/56 = 15 × 3/56 × 3 = 45/168 - Add the two like fractions:
400/168 + 45/168 = 400 + 45/168 = 445/168 - So, 50/21 + 15/56 = 445/168
In mixed form: 2109/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21+30/56 50/42+15/56 50/21+45/56 50/63+15/56 50/21+75/56