Subtract 24/15 from 30/45
1st number: 30/45, 2nd number: 1 9/15
30/45 - 24/15 is -14/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
30/45 = 30 × 1/45 × 1 = 30/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
24/15 = 24 × 3/15 × 3 = 72/45 - Subtract the two like fractions:
30/45 - 72/45 = 30 - 72/45 = -42/45 - After reducing the fraction, the answer is -14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45-24/15 30/45-48/15 30/90-24/15 30/45-24/30 90/45-24/15 30/45-72/15 30/45-24/45 30/45-24/75