Subtract 8/90 from 9/14
9/14 - 8/90 is 349/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
9/14 = 9 × 45/14 × 45 = 405/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
8/90 = 8 × 7/90 × 7 = 56/630 - Subtract the two like fractions:
405/630 - 56/630 = 405 - 56/630 = 349/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/14-8/90 9/14-16/90 9/28-8/90 27/14-8/90 9/14-24/90 9/42-8/90 45/14-8/90 9/14-40/90 9/70-8/90 63/14-8/90 9/14-56/90 9/98-8/90