Subtract 2/72 from 15/28
15/28 - 2/72 is 32/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
15/28 = 15 × 18/28 × 18 = 270/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
2/72 = 2 × 7/72 × 7 = 14/504 - Subtract the two like fractions:
270/504 - 14/504 = 270 - 14/504 = 256/504 - After reducing the fraction, the answer is 32/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28-2/72 15/28-4/72 15/56-2/72 45/28-2/72 15/28-6/72 15/84-2/72 75/28-2/72 15/28-10/72 15/28-14/72