Add 30/80 and 20/98
30/80 + 20/98 is 227/392.
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,
30/80 = 30 × 49/80 × 49 = 1470/3920 - Likewise, for the 2nd fraction, since 98 × 40 = 3920,
20/98 = 20 × 40/98 × 40 = 800/3920 - Add the two like fractions:
1470/3920 + 800/3920 = 1470 + 800/3920 = 2270/3920 - 2270/3920 simplified gives 227/392
- So, 30/80 + 20/98 = 227/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/80+20/98 30/80+40/98 90/80+20/98 30/80+60/98