Subtract 81/30 from 2/24
1st number: 2/24, 2nd number: 2 21/30
2/24 - 81/30 is -157/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
2/24 = 2 × 5/24 × 5 = 10/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
81/30 = 81 × 4/30 × 4 = 324/120 - Subtract the two like fractions:
10/120 - 324/120 = 10 - 324/120 = -314/120 - After reducing the fraction, the answer is -157/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/24-81/30 2/48-81/30 2/24-81/60 6/24-81/30 2/72-81/30 2/24-81/90 10/24-81/30 14/24-81/30