Add 7/54 and 90/98
7/54 + 90/98 is 2773/2646.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 98 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 54 × 49 = 2646,
7/54 = 7 × 49/54 × 49 = 343/2646 - Likewise, for the 2nd fraction, since 98 × 27 = 2646,
90/98 = 90 × 27/98 × 27 = 2430/2646 - Add the two like fractions:
343/2646 + 2430/2646 = 343 + 2430/2646 = 2773/2646 - So, 7/54 + 90/98 = 2773/2646
In mixed form: 1127/2646
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/54+90/98 21/54+90/98 35/54+90/98 49/54+90/98