Subtract 15/10 from 3/18
1st number: 3/18, 2nd number: 1 5/10
3/18 - 15/10 is -4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
3/18 = 3 × 5/18 × 5 = 15/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
15/10 = 15 × 9/10 × 9 = 135/90 - Subtract the two like fractions:
15/90 - 135/90 = 15 - 135/90 = -120/90 - After reducing the fraction, the answer is -4/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/18-15/10 3/18-30/10 3/36-15/10 3/18-15/20 9/18-15/10 3/18-45/10 3/54-15/10 3/18-15/30 15/18-15/10 3/18-75/10 3/90-15/10 3/18-15/50 21/18-15/10 3/18-15/70