Subtract 25/9 from 90/5
1st number: 18 0/5, 2nd number: 2 7/9
90/5 - 25/9 is 137/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
90/5 = 90 × 9/5 × 9 = 810/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
25/9 = 25 × 5/9 × 5 = 125/45 - Subtract the two like fractions:
810/45 - 125/45 = 810 - 125/45 = 685/45 - After reducing the fraction, the answer is 137/9
- In mixed form: 152/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-50/9 90/10-25/9 90/5-25/18 90/5-75/9 90/15-25/9 90/5-25/27 90/25-25/9 90/5-25/45 90/35-25/9 90/5-25/63