Subtract 15/45 from 24/90
24/90 - 15/45 is -1/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
24/90 = 24 × 1/90 × 1 = 24/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
15/45 = 15 × 2/45 × 2 = 30/90 - Subtract the two like fractions:
24/90 - 30/90 = 24 - 30/90 = -6/90 - After reducing the fraction, the answer is -1/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/90-15/45 24/90-30/45 24/90-15/90 72/90-15/45 24/90-75/45