Add 84/98 and 15/20
84/98 + 15/20 is 45/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 98 × 10 = 980,
84/98 = 84 × 10/98 × 10 = 840/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
15/20 = 15 × 49/20 × 49 = 735/980 - Add the two like fractions:
840/980 + 735/980 = 840 + 735/980 = 1575/980 - 1575/980 simplified gives 45/28
- So, 84/98 + 15/20 = 45/28
In mixed form: 117/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98+30/20 84/98+15/40 84/98+45/20 84/98+15/60 84/98+75/20