Subtract 27/7 from 63/72
1st number: 63/72, 2nd number: 3 6/7
63/72 - 27/7 is -167/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
63/72 = 63 × 7/72 × 7 = 441/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
27/7 = 27 × 72/7 × 72 = 1944/504 - Subtract the two like fractions:
441/504 - 1944/504 = 441 - 1944/504 = -1503/504 - After reducing the fraction, the answer is -167/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/72-54/7 63/72-27/14 63/72-81/7 63/72-27/21 63/72-27/35 63/72-27/49