Subtract 15/30 from 1/15
1/15 - 15/30 is -13/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 15 × 2 = 30,
1/15 = 1 × 2/15 × 2 = 2/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
15/30 = 15 × 1/30 × 1 = 15/30 - Subtract the two like fractions:
2/30 - 15/30 = 2 - 15/30 = -13/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15-15/30 1/30-15/30 1/15-15/60 3/15-15/30 1/15-45/30 1/45-15/30 1/15-15/90 5/15-15/30 1/15-75/30 1/75-15/30 7/15-15/30