Subtract 15/6 from 9/90
1st number: 9/90, 2nd number: 2 3/6
9/90 - 15/6 is -12/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
15/6 = 15 × 15/6 × 15 = 225/90 - Subtract the two like fractions:
9/90 - 225/90 = 9 - 225/90 = -216/90 - After reducing the fraction, the answer is -12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/90-15/6 9/90-30/6 9/90-15/12 27/90-15/6 9/90-45/6 9/90-15/18 45/90-15/6 9/90-75/6 9/90-15/30 63/90-15/6 9/90-15/42