Add 98/84 and 28/72
1st number: 1 14/84, 2nd number: 28/72
98/84 + 28/72 is 14/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
98/84 = 98 × 6/84 × 6 = 588/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504 - Add the two like fractions:
588/504 + 196/504 = 588 + 196/504 = 784/504 - 784/504 simplified gives 14/9
- So, 98/84 + 28/72 = 14/9
In mixed form: 15/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/84+56/72 98/84+84/72