Subtract 35/4 from 4/90
1st number: 4/90, 2nd number: 8 3/4
4/90 - 35/4 is -1567/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
4/90 = 4 × 2/90 × 2 = 8/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
35/4 = 35 × 45/4 × 45 = 1575/180 - Subtract the two like fractions:
8/180 - 1575/180 = 8 - 1575/180 = -1567/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90-35/4 4/90-70/4 4/90-35/8 12/90-35/4 4/90-35/12 20/90-35/4 4/90-35/20 28/90-35/4 4/90-35/28