Subtract 54/16 from 15/18
1st number: 15/18, 2nd number: 3 6/16
15/18 - 54/16 is -61/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
15/18 = 15 × 8/18 × 8 = 120/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
54/16 = 54 × 9/16 × 9 = 486/144 - Subtract the two like fractions:
120/144 - 486/144 = 120 - 486/144 = -366/144 - After reducing the fraction, the answer is -61/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18-54/16 15/36-54/16 15/18-54/32 45/18-54/16 15/54-54/16 15/18-54/48 75/18-54/16 15/90-54/16 15/18-54/80