Subtract 2/8 from 10/90
10/90 - 2/8 is -5/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
10/90 = 10 × 4/90 × 4 = 40/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
2/8 = 2 × 45/8 × 45 = 90/360 - Subtract the two like fractions:
40/360 - 90/360 = 40 - 90/360 = -50/360 - After reducing the fraction, the answer is -5/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/90-2/8 10/90-4/8 10/90-2/16 30/90-2/8 10/90-6/8 10/90-2/24 50/90-2/8 10/90-10/8 10/90-2/40 70/90-2/8 10/90-14/8 10/90-2/56