Subtract 21/8 from 14/16
1st number: 14/16, 2nd number: 2 5/8
14/16 - 21/8 is -7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 8 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 16 × 1 = 16,
14/16 = 14 × 1/16 × 1 = 14/16 - Likewise, for the 2nd fraction, since 8 × 2 = 16,
21/8 = 21 × 2/8 × 2 = 42/16 - Subtract the two like fractions:
14/16 - 42/16 = 14 - 42/16 = -28/16 - After reducing the fraction, the answer is -7/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/16-21/8 14/16-42/8 14/32-21/8 14/16-21/16 42/16-21/8 14/16-63/8 14/48-21/8 14/16-21/24 70/16-21/8 14/80-21/8 14/16-21/40 98/16-21/8 14/16-21/56