Subtract 1/45 from 90/25
1st number: 3 15/25, 2nd number: 1/45
90/25 - 1/45 is 161/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
90/25 = 90 × 9/25 × 9 = 810/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
1/45 = 1 × 5/45 × 5 = 5/225 - Subtract the two like fractions:
810/225 - 5/225 = 810 - 5/225 = 805/225 - After reducing the fraction, the answer is 161/45
- In mixed form: 326/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25-2/45 90/50-1/45 90/25-1/90 90/25-3/45 90/75-1/45 90/25-5/45 90/25-7/45