Subtract 20/50 from 4/16
4/16 - 20/50 is -3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 16 × 25 = 400,
4/16 = 4 × 25/16 × 25 = 100/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
20/50 = 20 × 8/50 × 8 = 160/400 - Subtract the two like fractions:
100/400 - 160/400 = 100 - 160/400 = -60/400 - 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: 8/16-20/50 4/16-40/50 4/32-20/50 12/16-20/50 4/16-60/50 4/48-20/50 20/16-20/50 4/80-20/50 28/16-20/50