Subtract 12/10 from 18/24
1st number: 18/24, 2nd number: 1 2/10
18/24 - 12/10 is -9/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 10 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
18/24 = 18 × 5/24 × 5 = 90/120 - Likewise, for the 2nd fraction, since 10 × 12 = 120,
12/10 = 12 × 12/10 × 12 = 144/120 - Subtract the two like fractions:
90/120 - 144/120 = 90 - 144/120 = -54/120 - After reducing the fraction, the answer is -9/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/24-12/10 18/24-24/10 18/48-12/10 18/24-12/20 54/24-12/10 18/24-36/10 18/72-12/10 18/24-12/30 90/24-12/10 18/24-60/10 18/24-12/50 18/24-84/10 18/24-12/70