Subtract 48/18 from 15/12
1st number: 1 3/12, 2nd number: 2 12/18
15/12 - 48/18 is -17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
15/12 = 15 × 3/12 × 3 = 45/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
48/18 = 48 × 2/18 × 2 = 96/36 - Subtract the two like fractions:
45/36 - 96/36 = 45 - 96/36 = -51/36 - After reducing the fraction, the answer is -17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12-48/18 15/12-96/18 15/24-48/18 15/12-48/36 45/12-48/18 15/36-48/18 15/12-48/54 75/12-48/18 15/60-48/18 15/12-48/90 15/84-48/18