Subtract 4/15 from 4/45
4/45 - 4/15 is -8/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
4/45 = 4 × 1/45 × 1 = 4/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
4/15 = 4 × 3/15 × 3 = 12/45 - Subtract the two like fractions:
4/45 - 12/45 = 4 - 12/45 = -8/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-4/15 4/45-8/15 4/90-4/15 4/45-4/30 12/45-4/15 4/45-12/15 4/45-4/45 20/45-4/15 4/45-20/15 4/45-4/75 28/45-4/15 4/45-28/15