Add 25/81 and 72/98
25/81 + 72/98 is 4141/3969.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 98 is 7938
Next, find the equivalent fraction of both fractional numbers with denominator 7938 - For the 1st fraction, since 81 × 98 = 7938,
25/81 = 25 × 98/81 × 98 = 2450/7938 - Likewise, for the 2nd fraction, since 98 × 81 = 7938,
72/98 = 72 × 81/98 × 81 = 5832/7938 - Add the two like fractions:
2450/7938 + 5832/7938 = 2450 + 5832/7938 = 8282/7938 - 8282/7938 simplified gives 4141/3969
- So, 25/81 + 72/98 = 4141/3969
In mixed form: 1172/3969
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/81+72/98 75/81+72/98