Add 12/21 and 27/50
12/21 + 27/50 is 389/350.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
12/21 = 12 × 50/21 × 50 = 600/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
27/50 = 27 × 21/50 × 21 = 567/1050 - Add the two like fractions:
600/1050 + 567/1050 = 600 + 567/1050 = 1167/1050 - 1167/1050 simplified gives 389/350
- So, 12/21 + 27/50 = 389/350
In mixed form: 139/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21+27/50 12/21+54/50 12/42+27/50 36/21+27/50 12/21+81/50 12/63+27/50 60/21+27/50 84/21+27/50