Subtract 49/20 from 2/9
1st number: 2/9, 2nd number: 2 9/20
2/9 - 49/20 is -401/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
2/9 = 2 × 20/9 × 20 = 40/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
49/20 = 49 × 9/20 × 9 = 441/180 - Subtract the two like fractions:
40/180 - 441/180 = 40 - 441/180 = -401/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/9-49/20 2/9-98/20 2/18-49/20 2/9-49/40 6/9-49/20 2/27-49/20 2/9-49/60 10/9-49/20 2/45-49/20 14/9-49/20 2/63-49/20