Subtract 15/90 from 3/6
3/6 - 15/90 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
3/6 = 3 × 15/6 × 15 = 45/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Subtract the two like fractions:
45/90 - 15/90 = 45 - 15/90 = 30/90 - After reducing the fraction, the answer is 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6-30/90 3/12-15/90 9/6-15/90 3/6-45/90 3/18-15/90 15/6-15/90 3/6-75/90 3/30-15/90 21/6-15/90 3/42-15/90