Add 25/80 and 20/98
25/80 + 20/98 is 405/784.
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,
25/80 = 25 × 49/80 × 49 = 1225/3920 - Likewise, for the 2nd fraction, since 98 × 40 = 3920,
20/98 = 20 × 40/98 × 40 = 800/3920 - Add the two like fractions:
1225/3920 + 800/3920 = 1225 + 800/3920 = 2025/3920 - 2025/3920 simplified gives 405/784
- So, 25/80 + 20/98 = 405/784
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80+20/98 25/80+40/98 75/80+20/98 25/80+60/98