Subtract 20/54 from 45/4
1st number: 11 1/4, 2nd number: 20/54
45/4 - 20/54 is 1175/108.
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,
45/4 = 45 × 27/4 × 27 = 1215/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
20/54 = 20 × 2/54 × 2 = 40/108 - Subtract the two like fractions:
1215/108 - 40/108 = 1215 - 40/108 = 1175/108 - In mixed form: 1095/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4-20/54 45/4-40/54 45/8-20/54 45/4-60/54 45/12-20/54 45/20-20/54 45/28-20/54