Add 8/28 and 50/21
1st number: 8/28, 2nd number: 2 8/21
8/28 + 50/21 is 8/3.
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,
8/28 = 8 × 3/28 × 3 = 24/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
50/21 = 50 × 4/21 × 4 = 200/84 - Add the two like fractions:
24/84 + 200/84 = 24 + 200/84 = 224/84 - 224/84 simplified gives 8/3
- So, 8/28 + 50/21 = 8/3
In mixed form: 22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28+50/21 8/56+50/21 8/28+50/42 24/28+50/21 8/84+50/21 8/28+50/63 40/28+50/21 56/28+50/21