Subtract 3/80 from 18/49
18/49 - 3/80 is 1293/3920.
Steps for subtracting 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,
18/49 = 18 × 80/49 × 80 = 1440/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
3/80 = 3 × 49/80 × 49 = 147/3920 - Subtract the two like fractions:
1440/3920 - 147/3920 = 1440 - 147/3920 = 1293/3920
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/49-3/80 18/49-6/80 18/98-3/80 54/49-3/80 18/49-9/80 90/49-3/80 18/49-15/80 18/49-21/80