Subtract 4/49 from 20/18
1st number: 1 2/18, 2nd number: 4/49
20/18 - 4/49 is 454/441.
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,
4/49 = 4 × 18/49 × 18 = 72/882 - Subtract the two like fractions:
980/882 - 72/882 = 980 - 72/882 = 908/882 - After reducing the fraction, the answer is 454/441
- In mixed form: 113/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18-4/49 20/18-8/49 20/36-4/49 20/18-4/98 60/18-4/49 20/18-12/49 20/54-4/49 20/18-20/49 20/90-4/49 20/18-28/49