Subtract 2/3 from 9/20
9/20 - 2/3 is -13/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
9/20 = 9 × 3/20 × 3 = 27/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
2/3 = 2 × 20/3 × 20 = 40/60 - Subtract the two like fractions:
27/60 - 40/60 = 27 - 40/60 = -13/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20-2/3 9/20-4/3 9/40-2/3 9/20-2/6 27/20-2/3 9/20-6/3 9/60-2/3 9/20-2/9 45/20-2/3 9/20-10/3 9/20-2/15 63/20-2/3 9/20-14/3 9/20-2/21