Subtract 54/5 from 27/12
1st number: 2 3/12, 2nd number: 10 4/5
27/12 - 54/5 is -171/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
27/12 = 27 × 5/12 × 5 = 135/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
54/5 = 54 × 12/5 × 12 = 648/60 - Subtract the two like fractions:
135/60 - 648/60 = 135 - 648/60 = -513/60 - After reducing the fraction, the answer is -171/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/12-54/5 27/24-54/5 27/12-54/10 81/12-54/5 27/36-54/5 27/12-54/15 27/60-54/5 27/12-54/25 27/84-54/5 27/12-54/35