Add 21/27 and 21/98
21/27 + 21/98 is 125/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 98 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 27 × 98 = 2646,
21/27 = 21 × 98/27 × 98 = 2058/2646 - Likewise, for the 2nd fraction, since 98 × 27 = 2646,
21/98 = 21 × 27/98 × 27 = 567/2646 - Add the two like fractions:
2058/2646 + 567/2646 = 2058 + 567/2646 = 2625/2646 - 2625/2646 simplified gives 125/126
- So, 21/27 + 21/98 = 125/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27+21/98 21/27+42/98 21/54+21/98 63/27+21/98 21/27+63/98 21/81+21/98