Subtract 3/21 from 27/16
1st number: 1 11/16, 2nd number: 3/21
27/16 - 3/21 is 173/112.
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,
27/16 = 27 × 21/16 × 21 = 567/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
3/21 = 3 × 16/21 × 16 = 48/336 - Subtract the two like fractions:
567/336 - 48/336 = 567 - 48/336 = 519/336 - After reducing the fraction, the answer is 173/112
- In mixed form: 161/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/16-3/21 27/16-6/21 27/32-3/21 27/16-3/42 81/16-3/21 27/16-9/21 27/48-3/21 27/16-3/63 27/16-15/21 27/80-3/21