Add 50/28 and 21/9
1st number: 1 22/28, 2nd number: 2 3/9
50/28 + 21/9 is 173/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
50/28 = 50 × 9/28 × 9 = 450/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
21/9 = 21 × 28/9 × 28 = 588/252 - Add the two like fractions:
450/252 + 588/252 = 450 + 588/252 = 1038/252 - 1038/252 simplified gives 173/42
- So, 50/28 + 21/9 = 173/42
In mixed form: 45/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+42/9 50/56+21/9 50/28+21/18 50/28+63/9 50/84+21/9 50/28+21/27 50/28+21/45 50/28+21/63