Add 7/98 and 28/81
7/98 + 28/81 is 473/1134.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 81 is 7938
Next, find the equivalent fraction of both fractional numbers with denominator 7938 - For the 1st fraction, since 98 × 81 = 7938,
7/98 = 7 × 81/98 × 81 = 567/7938 - Likewise, for the 2nd fraction, since 81 × 98 = 7938,
28/81 = 28 × 98/81 × 98 = 2744/7938 - Add the two like fractions:
567/7938 + 2744/7938 = 567 + 2744/7938 = 3311/7938 - 3311/7938 simplified gives 473/1134
- So, 7/98 + 28/81 = 473/1134
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/98+28/81 7/98+56/81 21/98+28/81 7/98+84/81 35/98+28/81 49/98+28/81