Subtract 3/36 from 20/49
20/49 - 3/36 is 191/588.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 36 is 1764
Next, find the equivalent fraction of both fractional numbers with denominator 1764 - For the 1st fraction, since 49 × 36 = 1764,
20/49 = 20 × 36/49 × 36 = 720/1764 - Likewise, for the 2nd fraction, since 36 × 49 = 1764,
3/36 = 3 × 49/36 × 49 = 147/1764 - Subtract the two like fractions:
720/1764 - 147/1764 = 720 - 147/1764 = 573/1764 - After reducing the fraction, the answer is 191/588
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/49-3/36 20/49-6/36 20/98-3/36 20/49-3/72 60/49-3/36 20/49-9/36 20/49-15/36 20/49-21/36