Subtract 24/8 from 15/30
1st number: 15/30, 2nd number: 3 0/8
15/30 - 24/8 is -5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
15/30 = 15 × 4/30 × 4 = 60/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
24/8 = 24 × 15/8 × 15 = 360/120 - Subtract the two like fractions:
60/120 - 360/120 = 60 - 360/120 = -300/120 - After reducing the fraction, the answer is -5/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 15/30-48/8 15/60-24/8 15/30-24/16 45/30-24/8 15/30-72/8 15/90-24/8 75/30-24/8 15/30-24/40 15/30-24/56