Subtract 9/16 from 45/21
1st number: 2 3/21, 2nd number: 9/16
45/21 - 9/16 is 177/112.
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,
45/21 = 45 × 16/21 × 16 = 720/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
9/16 = 9 × 21/16 × 21 = 189/336 - Subtract the two like fractions:
720/336 - 189/336 = 720 - 189/336 = 531/336 - After reducing the fraction, the answer is 177/112
- In mixed form: 165/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21-9/16 45/21-18/16 45/42-9/16 45/21-9/32 45/21-27/16 45/63-9/16 45/21-9/48 45/21-45/16 45/21-9/80 45/21-63/16