Subtract 4/25 from 21/16
1st number: 1 5/16, 2nd number: 4/25
21/16 - 4/25 is 461/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 16 × 25 = 400,
21/16 = 21 × 25/16 × 25 = 525/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
4/25 = 4 × 16/25 × 16 = 64/400 - Subtract the two like fractions:
525/400 - 64/400 = 525 - 64/400 = 461/400 - In mixed form: 161/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/16-4/25 21/16-8/25 21/32-4/25 21/16-4/50 63/16-4/25 21/16-12/25 21/48-4/25 21/16-4/75 21/16-20/25 21/80-4/25 21/16-28/25