Subtract 90/16 from 14/21
1st number: 14/21, 2nd number: 5 10/16
14/21 - 90/16 is -119/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
14/21 = 14 × 16/21 × 16 = 224/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
90/16 = 90 × 21/16 × 21 = 1890/336 - Subtract the two like fractions:
224/336 - 1890/336 = 224 - 1890/336 = -1666/336 - After reducing the fraction, the answer is -119/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21-90/16 14/42-90/16 14/21-90/32 42/21-90/16 14/63-90/16 14/21-90/48 70/21-90/16 14/21-90/80 98/21-90/16