Add 98/21 and 28/18
1st number: 4 14/21, 2nd number: 1 10/18
98/21 + 28/18 is 56/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
98/21 = 98 × 6/21 × 6 = 588/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
28/18 = 28 × 7/18 × 7 = 196/126 - Add the two like fractions:
588/126 + 196/126 = 588 + 196/126 = 784/126 - 784/126 simplified gives 56/9
- So, 98/21 + 28/18 = 56/9
In mixed form: 62/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21+56/18 98/42+28/18 98/21+28/36 98/21+84/18 98/63+28/18 98/21+28/54 98/21+28/90