Subtract 35/9 from 28/90
1st number: 28/90, 2nd number: 3 8/9
28/90 - 35/9 is -161/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
28/90 = 28 × 1/90 × 1 = 28/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
35/9 = 35 × 10/9 × 10 = 350/90 - Subtract the two like fractions:
28/90 - 350/90 = 28 - 350/90 = -322/90 - After reducing the fraction, the answer is -161/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90-35/9 28/90-70/9 28/90-35/18 84/90-35/9 28/90-35/27 28/90-35/45 28/90-35/63