Subtract 20/9 from 25/15
1st number: 1 10/15, 2nd number: 2 2/9
25/15 - 20/9 is -5/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
25/15 = 25 × 3/15 × 3 = 75/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
20/9 = 20 × 5/9 × 5 = 100/45 - Subtract the two like fractions:
75/45 - 100/45 = 75 - 100/45 = -25/45 - After reducing the fraction, the answer is -5/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/15-20/9 25/15-40/9 25/30-20/9 25/15-20/18 75/15-20/9 25/15-60/9 25/45-20/9 25/15-20/27 25/75-20/9 25/15-20/45 25/15-20/63