Subtract 45/24 from 40/30
1st number: 1 10/30, 2nd number: 1 21/24
40/30 - 45/24 is -13/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
40/30 = 40 × 4/30 × 4 = 160/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
45/24 = 45 × 5/24 × 5 = 225/120 - Subtract the two like fractions:
160/120 - 225/120 = 160 - 225/120 = -65/120 - 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: 80/30-45/24 40/30-90/24 40/60-45/24 40/30-45/48 40/90-45/24 40/30-45/72