Subtract 4/90 from 3/6
3/6 - 4/90 is 41/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
3/6 = 3 × 15/6 × 15 = 45/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Subtract the two like fractions:
45/90 - 4/90 = 45 - 4/90 = 41/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6-8/90 3/12-4/90 9/6-4/90 3/6-12/90 3/18-4/90 15/6-4/90 3/6-20/90 3/30-4/90 21/6-4/90 3/6-28/90 3/42-4/90