Add 90/20 and 28/98
1st number: 4 10/20, 2nd number: 28/98
90/20 + 28/98 is 67/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
90/20 = 90 × 49/20 × 49 = 4410/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
28/98 = 28 × 10/98 × 10 = 280/980 - Add the two like fractions:
4410/980 + 280/980 = 4410 + 280/980 = 4690/980 - 4690/980 simplified gives 67/14
- So, 90/20 + 28/98 = 67/14
In mixed form: 411/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+56/98 90/40+28/98 90/20+84/98 90/60+28/98