Subtract 21/50 from 3/16
3/16 - 21/50 is -93/400.
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,
3/16 = 3 × 25/16 × 25 = 75/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
21/50 = 21 × 8/50 × 8 = 168/400 - Subtract the two like fractions:
75/400 - 168/400 = 75 - 168/400 = -93/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/16-21/50 3/16-42/50 3/32-21/50 9/16-21/50 3/16-63/50 3/48-21/50 15/16-21/50 3/80-21/50 21/16-21/50