Subtract 90/28 from 35/36
1st number: 35/36, 2nd number: 3 6/28
35/36 - 90/28 is -565/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
35/36 = 35 × 7/36 × 7 = 245/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
90/28 = 90 × 9/28 × 9 = 810/252 - Subtract the two like fractions:
245/252 - 810/252 = 245 - 810/252 = -565/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/36-90/28 35/72-90/28 35/36-90/56 35/36-90/84