Add 21/27 and 15/98
21/27 + 15/98 is 821/882.
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,
15/98 = 15 × 27/98 × 27 = 405/2646 - Add the two like fractions:
2058/2646 + 405/2646 = 2058 + 405/2646 = 2463/2646 - 2463/2646 simplified gives 821/882
- So, 21/27 + 15/98 = 821/882
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27+15/98 21/27+30/98 21/54+15/98 63/27+15/98 21/27+45/98 21/81+15/98 21/27+75/98