Add 90/20 and 84/98
1st number: 4 10/20, 2nd number: 84/98
90/20 + 84/98 is 75/14.
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,
84/98 = 84 × 10/98 × 10 = 840/980 - Add the two like fractions:
4410/980 + 840/980 = 4410 + 840/980 = 5250/980 - 5250/980 simplified gives 75/14
- So, 90/20 + 84/98 = 75/14
In mixed form: 55/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+84/98 90/60+84/98