Add 50/56 and 3/21
50/56 + 3/21 is 29/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
50/56 = 50 × 3/56 × 3 = 150/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
3/21 = 3 × 8/21 × 8 = 24/168 - Add the two like fractions:
150/168 + 24/168 = 150 + 24/168 = 174/168 - 174/168 simplified gives 29/28
- So, 50/56 + 3/21 = 29/28
In mixed form: 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/56+6/21 50/56+3/42 50/56+9/21 50/56+3/63 50/56+15/21