Subtract 12/30 from 5/20
5/20 - 12/30 is -3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
5/20 = 5 × 3/20 × 3 = 15/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
12/30 = 12 × 2/30 × 2 = 24/60 - Subtract the two like fractions:
15/60 - 24/60 = 15 - 24/60 = -9/60 - After reducing the fraction, the answer is -3/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20-12/30 5/20-24/30 5/40-12/30 5/20-12/60 15/20-12/30 5/20-36/30 5/60-12/30 5/20-12/90 25/20-12/30 5/20-60/30 35/20-12/30 5/20-84/30