Subtract 49/80 from 3/49
3/49 - 49/80 is -2161/3920.
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,
3/49 = 3 × 80/49 × 80 = 240/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
49/80 = 49 × 49/80 × 49 = 2401/3920 - Subtract the two like fractions:
240/3920 - 2401/3920 = 240 - 2401/3920 = -2161/3920
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/49-49/80 3/49-98/80 3/98-49/80 9/49-49/80 15/49-49/80 21/49-49/80