Subtract 1/54 from 21/4
1st number: 5 1/4, 2nd number: 1/54
21/4 - 1/54 is 565/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 54 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 54 × 2 = 108,
1/54 = 1 × 2/54 × 2 = 2/108 - Subtract the two like fractions:
567/108 - 2/108 = 567 - 2/108 = 565/108 - In mixed form: 525/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4-1/54 21/4-2/54 21/8-1/54 63/4-1/54 21/4-3/54 21/12-1/54 21/4-5/54 21/20-1/54 21/4-7/54 21/28-1/54