Subtract 3/12 from 15/2
1st number: 7 1/2, 2nd number: 3/12
15/2 - 3/12 is 29/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 2 × 6 = 12,
15/2 = 15 × 6/2 × 6 = 90/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
3/12 = 3 × 1/12 × 1 = 3/12 - Subtract the two like fractions:
90/12 - 3/12 = 90 - 3/12 = 87/12 - After reducing the fraction, the answer is 29/4
- In mixed form: 71/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2-3/12 15/2-6/12 15/4-3/12 15/2-3/24 45/2-3/12 15/2-9/12 15/6-3/12 15/2-3/36 75/2-3/12 15/2-15/12 15/10-3/12 15/2-3/60 15/2-21/12 15/14-3/12 15/2-3/84