Add 2/84 and 21/49
2/84 + 21/49 is 19/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
2/84 = 2 × 7/84 × 7 = 14/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
21/49 = 21 × 12/49 × 12 = 252/588 - Add the two like fractions:
14/588 + 252/588 = 14 + 252/588 = 266/588 - 266/588 simplified gives 19/42
- So, 2/84 + 21/49 = 19/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84+21/49 2/84+42/49 2/84+21/98 6/84+21/49 2/84+63/49 10/84+21/49 14/84+21/49