Subtract 63/12 from 54/72
1st number: 54/72, 2nd number: 5 3/12
54/72 - 63/12 is -9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 12 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
54/72 = 54 × 1/72 × 1 = 54/72 - Likewise, for the 2nd fraction, since 12 × 6 = 72,
63/12 = 63 × 6/12 × 6 = 378/72 - Subtract the two like fractions:
54/72 - 378/72 = 54 - 378/72 = -324/72 - After reducing the fraction, the answer is -9/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72-63/24 54/72-63/36 54/72-63/60 54/72-63/84