Add 5/12 and 21/49
5/12 + 21/49 is 71/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 12 × 49 = 588,
5/12 = 5 × 49/12 × 49 = 245/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
21/49 = 21 × 12/49 × 12 = 252/588 - Add the two like fractions:
245/588 + 252/588 = 245 + 252/588 = 497/588 - 497/588 simplified gives 71/84
- So, 5/12 + 21/49 = 71/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/12+21/49 5/12+42/49 5/24+21/49 5/12+21/98 15/12+21/49 5/12+63/49 5/36+21/49 25/12+21/49 5/60+21/49 35/12+21/49 5/84+21/49