Subtract 15/30 from 3/5
3/5 - 15/30 is 1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
3/5 = 3 × 6/5 × 6 = 18/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
15/30 = 15 × 1/30 × 1 = 15/30 - Subtract the two like fractions:
18/30 - 15/30 = 18 - 15/30 = 3/30 - After reducing the fraction, the answer is 1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5-15/30 3/10-15/30 3/5-15/60 9/5-15/30 3/5-45/30 3/15-15/30 3/5-15/90 15/5-15/30 3/5-75/30 3/25-15/30 21/5-15/30 3/35-15/30