Subtract 48/12 from 12/20
1st number: 12/20, 2nd number: 4 0/12
12/20 - 48/12 is -17/5.
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,
12/20 = 12 × 3/20 × 3 = 36/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
48/12 = 48 × 5/12 × 5 = 240/60 - Subtract the two like fractions:
36/60 - 240/60 = 36 - 240/60 = -204/60 - After reducing the fraction, the answer is -17/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20-48/12 12/20-96/12 12/40-48/12 12/20-48/24 36/20-48/12 12/60-48/12 12/20-48/36 60/20-48/12 12/20-48/60 84/20-48/12 12/20-48/84