Add 98/21 and 8/81
1st number: 4 14/21, 2nd number: 8/81
98/21 + 8/81 is 386/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 21 × 27 = 567,
98/21 = 98 × 27/21 × 27 = 2646/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
8/81 = 8 × 7/81 × 7 = 56/567 - Add the two like fractions:
2646/567 + 56/567 = 2646 + 56/567 = 2702/567 - 2702/567 simplified gives 386/81
- So, 98/21 + 8/81 = 386/81
In mixed form: 462/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+16/81 98/42+8/81 98/21+24/81 98/63+8/81 98/21+40/81 98/21+56/81