Subtract 1/21 from 75/16
1st number: 4 11/16, 2nd number: 1/21
75/16 - 1/21 is 1559/336.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
75/16 = 75 × 21/16 × 21 = 1575/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
1/21 = 1 × 16/21 × 16 = 16/336 - Subtract the two like fractions:
1575/336 - 16/336 = 1575 - 16/336 = 1559/336 - In mixed form: 4215/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/16-2/21 75/32-1/21 75/16-1/42 75/16-3/21 75/48-1/21 75/16-1/63 75/16-5/21 75/80-1/21 75/16-7/21