Subtract 9/72 from 10/63
10/63 - 9/72 is 17/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
10/63 = 10 × 8/63 × 8 = 80/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504 - Subtract the two like fractions:
80/504 - 63/504 = 80 - 63/504 = 17/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/63-9/72 10/63-18/72 30/63-9/72 10/63-27/72 50/63-9/72 10/63-45/72 70/63-9/72 10/63-63/72