Add 50/21 and 81/6
1st number: 2 8/21, 2nd number: 13 3/6
50/21 + 81/6 is 667/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
50/21 = 50 × 2/21 × 2 = 100/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
81/6 = 81 × 7/6 × 7 = 567/42 - Add the two like fractions:
100/42 + 567/42 = 100 + 567/42 = 667/42 - So, 50/21 + 81/6 = 667/42
In mixed form: 1537/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+81/6 50/21+81/12 50/63+81/6 50/21+81/18 50/21+81/30 50/21+81/42