Subtract 25/18 from 90/25
1st number: 3 15/25, 2nd number: 1 7/18
90/25 - 25/18 is 199/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
90/25 = 90 × 18/25 × 18 = 1620/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
25/18 = 25 × 25/18 × 25 = 625/450 - Subtract the two like fractions:
1620/450 - 625/450 = 1620 - 625/450 = 995/450 - After reducing the fraction, the answer is 199/90
- In mixed form: 219/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25-50/18 90/50-25/18 90/25-25/36 90/25-75/18 90/75-25/18 90/25-25/54 90/25-25/90