Subtract 35/12 from 1/90
1st number: 1/90, 2nd number: 2 11/12
1/90 - 35/12 is -523/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
1/90 = 1 × 2/90 × 2 = 2/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
35/12 = 35 × 15/12 × 15 = 525/180 - Subtract the two like fractions:
2/180 - 525/180 = 2 - 525/180 = -523/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90-35/12 1/90-70/12 1/90-35/24 3/90-35/12 1/90-35/36 5/90-35/12 1/90-35/60 7/90-35/12 1/90-35/84