Subtract 15/25 from 18/30
18/30 - 15/25 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
18/30 = 18 × 5/30 × 5 = 90/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
15/25 = 15 × 6/25 × 6 = 90/150 - Subtract the two like fractions:
90/150 - 90/150 = 90 - 90/150 = 0/150 - The answer is 0
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30-15/25 18/30-30/25 18/60-15/25 18/30-15/50 54/30-15/25 18/30-45/25 18/90-15/25 18/30-15/75 90/30-15/25 18/30-75/25