Subtract 30/24 from 9/12
1st number: 9/12, 2nd number: 1 6/24
9/12 - 30/24 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
9/12 = 9 × 2/12 × 2 = 18/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
30/24 = 30 × 1/24 × 1 = 30/24 - Subtract the two like fractions:
18/24 - 30/24 = 18 - 30/24 = -12/24 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12-30/24 9/12-60/24 9/24-30/24 9/12-30/48 27/12-30/24 9/12-90/24 9/36-30/24 9/12-30/72 45/12-30/24 9/60-30/24 63/12-30/24 9/84-30/24