Subtract 2/54 from 81/8
1st number: 10 1/8, 2nd number: 2/54
81/8 - 2/54 is 2179/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
81/8 = 81 × 27/8 × 27 = 2187/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
2/54 = 2 × 4/54 × 4 = 8/216 - Subtract the two like fractions:
2187/216 - 8/216 = 2187 - 8/216 = 2179/216 - In mixed form: 1019/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/8-4/54 81/16-2/54 81/8-6/54 81/24-2/54 81/8-10/54 81/40-2/54 81/8-14/54 81/56-2/54