Add 50/28 and 15/21
1st number: 1 22/28, 2nd number: 15/21
50/28 + 15/21 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
50/28 = 50 × 3/28 × 3 = 150/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
15/21 = 15 × 4/21 × 4 = 60/84 - Add the two like fractions:
150/84 + 60/84 = 150 + 60/84 = 210/84 - 210/84 simplified gives 5/2
- So, 50/28 + 15/21 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+30/21 50/56+15/21 50/28+15/42 50/28+45/21 50/84+15/21 50/28+15/63 50/28+75/21