Subtract 4/6 from 7/90
7/90 - 4/6 is -53/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
4/6 = 4 × 15/6 × 15 = 60/90 - Subtract the two like fractions:
7/90 - 60/90 = 7 - 60/90 = -53/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90-4/6 7/90-8/6 7/90-4/12 21/90-4/6 7/90-12/6 7/90-4/18 35/90-4/6 7/90-20/6 7/90-4/30 49/90-4/6 7/90-28/6 7/90-4/42