Subtract 7/63 from 10/72
10/72 - 7/63 is 1/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
10/72 = 10 × 7/72 × 7 = 70/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
7/63 = 7 × 8/63 × 8 = 56/504 - Subtract the two like fractions:
70/504 - 56/504 = 70 - 56/504 = 14/504 - After reducing the fraction, the answer is 1/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/72-7/63 10/72-14/63 30/72-7/63 10/72-21/63 50/72-7/63 10/72-35/63 70/72-7/63 10/72-49/63