Subtract 21/16 from 16/25
1st number: 16/25, 2nd number: 1 5/16
16/25 - 21/16 is -269/400.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 16 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
16/25 = 16 × 16/25 × 16 = 256/400 - Likewise, for the 2nd fraction, since 16 × 25 = 400,
21/16 = 21 × 25/16 × 25 = 525/400 - Subtract the two like fractions:
256/400 - 525/400 = 256 - 525/400 = -269/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/25-21/16 16/25-42/16 16/50-21/16 16/25-21/32 48/25-21/16 16/25-63/16 16/75-21/16 16/25-21/48 80/25-21/16 16/25-21/80