Subtract 15/90 from 28/9
1st number: 3 1/9, 2nd number: 15/90
28/9 - 15/90 is 53/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
28/9 = 28 × 10/9 × 10 = 280/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Subtract the two like fractions:
280/90 - 15/90 = 280 - 15/90 = 265/90 - After reducing the fraction, the answer is 53/18
- In mixed form: 217/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9-15/90 28/9-30/90 28/18-15/90 84/9-15/90 28/9-45/90 28/27-15/90 28/9-75/90 28/45-15/90 28/63-15/90