Subtract 27/18 from 54/84
1st number: 54/84, 2nd number: 1 9/18
54/84 - 27/18 is -6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
54/84 = 54 × 3/84 × 3 = 162/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
27/18 = 27 × 14/18 × 14 = 378/252 - Subtract the two like fractions:
162/252 - 378/252 = 162 - 378/252 = -216/252 - After reducing the fraction, the answer is -6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84-54/18 54/84-27/36 54/84-81/18 54/84-27/54 54/84-27/90