Subtract 75/27 from 21/4
1st number: 5 1/4, 2nd number: 2 21/27
21/4 - 75/27 is 89/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
21/4 = 21 × 27/4 × 27 = 567/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
75/27 = 75 × 4/27 × 4 = 300/108 - Subtract the two like fractions:
567/108 - 300/108 = 567 - 300/108 = 267/108 - After reducing the fraction, the answer is 89/36
- In mixed form: 217/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4-75/27 21/8-75/27 21/4-75/54 63/4-75/27 21/12-75/27 21/4-75/81 21/20-75/27 21/28-75/27