Subtract 1/90 from 5/8
5/8 - 1/90 is 221/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
5/8 = 5 × 45/8 × 45 = 225/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
1/90 = 1 × 4/90 × 4 = 4/360 - Subtract the two like fractions:
225/360 - 4/360 = 225 - 4/360 = 221/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/8-1/90 5/8-2/90 5/16-1/90 15/8-1/90 5/8-3/90 5/24-1/90 25/8-1/90 5/8-5/90 5/40-1/90 35/8-1/90 5/8-7/90 5/56-1/90