Subtract 20/49 from 4/15
4/15 - 20/49 is -104/735.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
4/15 = 4 × 49/15 × 49 = 196/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
20/49 = 20 × 15/49 × 15 = 300/735 - Subtract the two like fractions:
196/735 - 300/735 = 196 - 300/735 = -104/735
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/15-20/49 4/15-40/49 4/30-20/49 4/15-20/98 12/15-20/49 4/15-60/49 4/45-20/49 20/15-20/49 4/75-20/49 28/15-20/49