Add 98/5 and 98/81
1st number: 19 3/5, 2nd number: 1 17/81
98/5 + 98/81 is 8428/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
98/5 = 98 × 81/5 × 81 = 7938/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
98/81 = 98 × 5/81 × 5 = 490/405 - Add the two like fractions:
7938/405 + 490/405 = 7938 + 490/405 = 8428/405 - So, 98/5 + 98/81 = 8428/405
In mixed form: 20328/405
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/10+98/81 98/15+98/81 98/25+98/81 98/35+98/81