Subtract 27/20 from 54/5
1st number: 10 4/5, 2nd number: 1 7/20
54/5 - 27/20 is 189/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
54/5 = 54 × 4/5 × 4 = 216/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
27/20 = 27 × 1/20 × 1 = 27/20 - Subtract the two like fractions:
216/20 - 27/20 = 216 - 27/20 = 189/20 - In mixed form: 99/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5-54/20 54/10-27/20 54/5-27/40 54/5-81/20 54/15-27/20 54/5-27/60 54/25-27/20 54/35-27/20