Add 20/80 and 50/98
20/80 + 50/98 is 149/196.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 98 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 80 × 49 = 3920,
20/80 = 20 × 49/80 × 49 = 980/3920 - Likewise, for the 2nd fraction, since 98 × 40 = 3920,
50/98 = 50 × 40/98 × 40 = 2000/3920 - Add the two like fractions:
980/3920 + 2000/3920 = 980 + 2000/3920 = 2980/3920 - 2980/3920 simplified gives 149/196
- So, 20/80 + 50/98 = 149/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/80+50/98 60/80+50/98