Add 50/21 and 20/36
1st number: 2 8/21, 2nd number: 20/36
50/21 + 20/36 is 185/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
50/21 = 50 × 12/21 × 12 = 600/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
20/36 = 20 × 7/36 × 7 = 140/252 - Add the two like fractions:
600/252 + 140/252 = 600 + 140/252 = 740/252 - 740/252 simplified gives 185/63
- So, 50/21 + 20/36 = 185/63
In mixed form: 259/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21+40/36 50/42+20/36 50/21+20/72 50/21+60/36 50/63+20/36