Subtract 15/80 from 5/49
5/49 - 15/80 is -67/784.
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,
5/49 = 5 × 80/49 × 80 = 400/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
15/80 = 15 × 49/80 × 49 = 735/3920 - Subtract the two like fractions:
400/3920 - 735/3920 = 400 - 735/3920 = -335/3920 - After reducing the fraction, the answer is -67/784
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/49-15/80 5/49-30/80 5/98-15/80 15/49-15/80 5/49-45/80 25/49-15/80 5/49-75/80 35/49-15/80