Subtract 1/45 from 3/15
3/15 - 1/45 is 8/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
3/15 = 3 × 3/15 × 3 = 9/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
1/45 = 1 × 1/45 × 1 = 1/45 - Subtract the two like fractions:
9/45 - 1/45 = 9 - 1/45 = 8/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15-1/45 3/15-2/45 3/30-1/45 3/15-1/90 9/15-1/45 3/15-3/45 3/45-1/45 3/15-5/45 3/75-1/45 21/15-1/45 3/15-7/45