Subtract 90/72 from 25/9
1st number: 2 7/9, 2nd number: 1 18/72
25/9 - 90/72 is 55/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
25/9 = 25 × 8/9 × 8 = 200/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
90/72 = 90 × 1/72 × 1 = 90/72 - Subtract the two like fractions:
200/72 - 90/72 = 200 - 90/72 = 110/72 - After reducing the fraction, the answer is 55/36
- In mixed form: 119/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/9-90/72 25/18-90/72 75/9-90/72 25/27-90/72 25/45-90/72 25/63-90/72