Subtract 49/18 from 1/20
1st number: 1/20, 2nd number: 2 13/18
1/20 - 49/18 is -481/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
49/18 = 49 × 10/18 × 10 = 490/180 - Subtract the two like fractions:
9/180 - 490/180 = 9 - 490/180 = -481/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20-49/18 1/20-98/18 1/40-49/18 1/20-49/36 3/20-49/18 1/60-49/18 1/20-49/54 5/20-49/18 1/20-49/90 7/20-49/18