Subtract 45/20 from 49/9
1st number: 5 4/9, 2nd number: 2 5/20
49/9 - 45/20 is 115/36.
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,
49/9 = 49 × 20/9 × 20 = 980/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
45/20 = 45 × 9/20 × 9 = 405/180 - Subtract the two like fractions:
980/180 - 405/180 = 980 - 405/180 = 575/180 - After reducing the fraction, the answer is 115/36
- In mixed form: 37/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/9-45/20 49/9-90/20 49/18-45/20 49/9-45/40 49/27-45/20 49/9-45/60 49/45-45/20 49/63-45/20