Subtract 24/12 from 7/20
1st number: 7/20, 2nd number: 2 0/12
7/20 - 24/12 is -33/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
7/20 = 7 × 3/20 × 3 = 21/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
24/12 = 24 × 5/12 × 5 = 120/60 - Subtract the two like fractions:
21/60 - 120/60 = 21 - 120/60 = -99/60 - After reducing the fraction, the answer is -33/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20-24/12 7/20-48/12 7/40-24/12 21/20-24/12 7/20-72/12 7/60-24/12 7/20-24/36 35/20-24/12 7/20-24/60 49/20-24/12 7/20-24/84