Add 98/28 and 7/21
1st number: 3 14/28, 2nd number: 7/21
98/28 + 7/21 is 23/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
98/28 = 98 × 3/28 × 3 = 294/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
7/21 = 7 × 4/21 × 4 = 28/84 - Add the two like fractions:
294/84 + 28/84 = 294 + 28/84 = 322/84 - 322/84 simplified gives 23/6
- So, 98/28 + 7/21 = 23/6
In mixed form: 35/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+14/21 98/56+7/21 98/28+7/42 98/84+7/21 98/28+7/63 98/28+35/21 98/28+49/21