Subtract 15/8 from 24/18
1st number: 1 6/18, 2nd number: 1 7/8
24/18 - 15/8 is -13/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
24/18 = 24 × 4/18 × 4 = 96/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
15/8 = 15 × 9/8 × 9 = 135/72 - Subtract the two like fractions:
96/72 - 135/72 = 96 - 135/72 = -39/72 - After reducing the fraction, the answer is -13/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/18-15/8 24/18-30/8 24/36-15/8 24/18-15/16 72/18-15/8 24/18-45/8 24/54-15/8 24/18-15/24 24/18-75/8 24/90-15/8 24/18-15/40 24/18-15/56