Subtract 15/25 from 18/12
1st number: 1 6/12, 2nd number: 15/25
18/12 - 15/25 is 9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
18/12 = 18 × 25/12 × 25 = 450/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
15/25 = 15 × 12/25 × 12 = 180/300 - Subtract the two like fractions:
450/300 - 180/300 = 450 - 180/300 = 270/300 - After reducing the fraction, the answer is 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12-15/25 18/12-30/25 18/24-15/25 18/12-15/50 54/12-15/25 18/12-45/25 18/36-15/25 18/12-15/75 90/12-15/25 18/12-75/25 18/60-15/25 18/84-15/25