Add 50/21 and 63/18
1st number: 2 8/21, 2nd number: 3 9/18
50/21 + 63/18 is 247/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
50/21 = 50 × 6/21 × 6 = 300/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
63/18 = 63 × 7/18 × 7 = 441/126 - Add the two like fractions:
300/126 + 441/126 = 300 + 441/126 = 741/126 - 741/126 simplified gives 247/42
- So, 50/21 + 63/18 = 247/42
In mixed form: 537/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42+63/18 50/21+63/36 50/63+63/18 50/21+63/54 50/21+63/90