Subtract 30/15 from 15/2
1st number: 7 1/2, 2nd number: 2 0/15
15/2 - 30/15 is 11/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
15/2 = 15 × 15/2 × 15 = 225/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
30/15 = 30 × 2/15 × 2 = 60/30 - Subtract the two like fractions:
225/30 - 60/30 = 225 - 60/30 = 165/30 - After reducing the fraction, the answer is 11/2
- In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2-30/15 15/2-60/15 15/4-30/15 45/2-30/15 15/2-90/15 15/6-30/15 15/2-30/45 75/2-30/15 15/10-30/15 15/2-30/75 15/14-30/15