Add 45/49 and 56/80
45/49 + 56/80 is 793/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 49 × 80 = 3920,
45/49 = 45 × 80/49 × 80 = 3600/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
56/80 = 56 × 49/80 × 49 = 2744/3920 - Add the two like fractions:
3600/3920 + 2744/3920 = 3600 + 2744/3920 = 6344/3920 - 6344/3920 simplified gives 793/490
- So, 45/49 + 56/80 = 793/490
In mixed form: 1303/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49+56/80 45/98+56/80