Subtract 18/49 from 56/80
56/80 - 18/49 is 163/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 49 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 80 × 49 = 3920,
56/80 = 56 × 49/80 × 49 = 2744/3920 - Likewise, for the 2nd fraction, since 49 × 80 = 3920,
18/49 = 18 × 80/49 × 80 = 1440/3920 - Subtract the two like fractions:
2744/3920 - 1440/3920 = 2744 - 1440/3920 = 1304/3920 - After reducing the fraction, the answer is 163/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/80-36/49 56/80-18/98 56/80-54/49 56/80-90/49