Subtract 2/18 from 15/72
15/72 - 2/18 is 7/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
15/72 = 15 × 1/72 × 1 = 15/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
2/18 = 2 × 4/18 × 4 = 8/72 - Subtract the two like fractions:
15/72 - 8/72 = 15 - 8/72 = 7/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72-2/18 15/72-4/18 15/72-2/36 45/72-2/18 15/72-6/18 15/72-2/54 75/72-2/18 15/72-10/18 15/72-2/90 15/72-14/18