Subtract 9/49 from 20/18
1st number: 1 2/18, 2nd number: 9/49
20/18 - 9/49 is 409/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 49 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 18 × 49 = 882,
20/18 = 20 × 49/18 × 49 = 980/882 - Likewise, for the 2nd fraction, since 49 × 18 = 882,
9/49 = 9 × 18/49 × 18 = 162/882 - Subtract the two like fractions:
980/882 - 162/882 = 980 - 162/882 = 818/882 - After reducing the fraction, the answer is 409/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18-9/49 20/18-18/49 20/36-9/49 20/18-9/98 60/18-9/49 20/18-27/49 20/54-9/49 20/18-45/49 20/90-9/49 20/18-63/49