Add 70/81 and 27/98
70/81 + 27/98 is 9047/7938.
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,
70/81 = 70 × 98/81 × 98 = 6860/7938 - Likewise, for the 2nd fraction, since 98 × 81 = 7938,
27/98 = 27 × 81/98 × 81 = 2187/7938 - Add the two like fractions:
6860/7938 + 2187/7938 = 6860 + 2187/7938 = 9047/7938 - So, 70/81 + 27/98 = 9047/7938
In mixed form: 11109/7938
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/81+54/98 70/81+81/98