Subtract 54/12 from 9/15
1st number: 9/15, 2nd number: 4 6/12
9/15 - 54/12 is -39/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
9/15 = 9 × 4/15 × 4 = 36/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
54/12 = 54 × 5/12 × 5 = 270/60 - Subtract the two like fractions:
36/60 - 270/60 = 36 - 270/60 = -234/60 - After reducing the fraction, the answer is -39/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-54/12 9/30-54/12 9/15-54/24 27/15-54/12 9/45-54/12 9/15-54/36 45/15-54/12 9/75-54/12 9/15-54/60 63/15-54/12 9/15-54/84