Subtract 27/98 from 21/36
21/36 - 27/98 is 181/588.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 98 is 1764
Next, find the equivalent fraction of both fractional numbers with denominator 1764 - For the 1st fraction, since 36 × 49 = 1764,
21/36 = 21 × 49/36 × 49 = 1029/1764 - Likewise, for the 2nd fraction, since 98 × 18 = 1764,
27/98 = 27 × 18/98 × 18 = 486/1764 - Subtract the two like fractions:
1029/1764 - 486/1764 = 1029 - 486/1764 = 543/1764 - After reducing the fraction, the answer is 181/588
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36-27/98 21/36-54/98 21/72-27/98 63/36-27/98 21/36-81/98