Subtract 1/15 from 2/45
2/45 - 1/15 is -1/45.
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,
2/45 = 2 × 1/45 × 1 = 2/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
1/15 = 1 × 3/15 × 3 = 3/45 - Subtract the two like fractions:
2/45 - 3/45 = 2 - 3/45 = -1/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45-1/15 2/45-2/15 2/90-1/15 2/45-1/30 6/45-1/15 2/45-3/15 2/45-1/45 10/45-1/15 2/45-5/15 2/45-1/75 14/45-1/15 2/45-7/15