Subtract 90/28 from 35/75
1st number: 35/75, 2nd number: 3 6/28
35/75 - 90/28 is -577/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 28 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
35/75 = 35 × 28/75 × 28 = 980/2100 - Likewise, for the 2nd fraction, since 28 × 75 = 2100,
90/28 = 90 × 75/28 × 75 = 6750/2100 - Subtract the two like fractions:
980/2100 - 6750/2100 = 980 - 6750/2100 = -5770/2100 - After reducing the fraction, the answer is -577/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/75-90/28 35/75-90/56 35/75-90/84