Subtract 24/20 from 3/12
1st number: 3/12, 2nd number: 1 4/20
3/12 - 24/20 is -19/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
3/12 = 3 × 5/12 × 5 = 15/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
24/20 = 24 × 3/20 × 3 = 72/60 - Subtract the two like fractions:
15/60 - 72/60 = 15 - 72/60 = -57/60 - After reducing the fraction, the answer is -19/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12-24/20 3/12-48/20 3/24-24/20 3/12-24/40 9/12-24/20 3/12-72/20 3/36-24/20 3/12-24/60 15/12-24/20 3/60-24/20 21/12-24/20 3/84-24/20