Subtract 8/20 from 2/16
2/16 - 8/20 is -11/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
2/16 = 2 × 5/16 × 5 = 10/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
8/20 = 8 × 4/20 × 4 = 32/80 - Subtract the two like fractions:
10/80 - 32/80 = 10 - 32/80 = -22/80 - After reducing the fraction, the answer is -11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/16-8/20 2/16-16/20 2/32-8/20 2/16-8/40 6/16-8/20 2/16-24/20 2/48-8/20 2/16-8/60 10/16-8/20 2/16-40/20 2/80-8/20 14/16-8/20 2/16-56/20