Subtract 81/8 from 54/2
1st number: 27 0/2, 2nd number: 10 1/8
54/2 - 81/8 is 135/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 2 × 4 = 8,
54/2 = 54 × 4/2 × 4 = 216/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
81/8 = 81 × 1/8 × 1 = 81/8 - Subtract the two like fractions:
216/8 - 81/8 = 216 - 81/8 = 135/8 - In mixed form: 167/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/4-81/8 54/2-81/16 54/6-81/8 54/2-81/24 54/10-81/8 54/2-81/40 54/14-81/8 54/2-81/56