Subtract 27/56 from 10/72
10/72 - 27/56 is -173/504.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 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 56 × 9 = 504,
27/56 = 27 × 9/56 × 9 = 243/504 - Subtract the two like fractions:
70/504 - 243/504 = 70 - 243/504 = -173/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/72-27/56 10/72-54/56 30/72-27/56 10/72-81/56 50/72-27/56 70/72-27/56