Subtract 54/12 from 2/81
1st number: 2/81, 2nd number: 4 6/12
2/81 - 54/12 is -725/162.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 12 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
2/81 = 2 × 4/81 × 4 = 8/324 - Likewise, for the 2nd fraction, since 12 × 27 = 324,
54/12 = 54 × 27/12 × 27 = 1458/324 - Subtract the two like fractions:
8/324 - 1458/324 = 8 - 1458/324 = -1450/324 - After reducing the fraction, the answer is -725/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/81-54/12 2/81-54/24 6/81-54/12 2/81-54/36 10/81-54/12 2/81-54/60 14/81-54/12 2/81-54/84