Subtract 9/20 from 25/9
1st number: 2 7/9, 2nd number: 9/20
25/9 - 9/20 is 419/180.
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,
25/9 = 25 × 20/9 × 20 = 500/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
9/20 = 9 × 9/20 × 9 = 81/180 - Subtract the two like fractions:
500/180 - 81/180 = 500 - 81/180 = 419/180 - In mixed form: 259/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/9-9/20 25/9-18/20 25/18-9/20 25/9-9/40 75/9-9/20 25/9-27/20 25/27-9/20 25/9-9/60 25/9-45/20 25/45-9/20 25/9-63/20 25/63-9/20