Subtract 14/45 from 8/90
8/90 - 14/45 is -2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
8/90 = 8 × 1/90 × 1 = 8/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
14/45 = 14 × 2/45 × 2 = 28/90 - Subtract the two like fractions:
8/90 - 28/90 = 8 - 28/90 = -20/90 - After reducing the fraction, the answer is -2/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90-14/45 8/90-28/45 8/90-14/90 24/90-14/45 8/90-42/45 40/90-14/45 8/90-70/45 56/90-14/45 8/90-98/45