Add 72/84 and 7/98
72/84 + 7/98 is 13/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 98 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
72/84 = 72 × 7/84 × 7 = 504/588 - Likewise, for the 2nd fraction, since 98 × 6 = 588,
7/98 = 7 × 6/98 × 6 = 42/588 - Add the two like fractions:
504/588 + 42/588 = 504 + 42/588 = 546/588 - 546/588 simplified gives 13/14
- So, 72/84 + 7/98 = 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/84+14/98 72/84+21/98 72/84+35/98 72/84+49/98