Subtract 8/14 from 49/90
49/90 - 8/14 is -17/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
49/90 = 49 × 7/90 × 7 = 343/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
8/14 = 8 × 45/14 × 45 = 360/630 - Subtract the two like fractions:
343/630 - 360/630 = 343 - 360/630 = -17/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/90-8/14 49/90-16/14 49/90-8/28 49/90-24/14 49/90-8/42 49/90-40/14 49/90-8/70 49/90-56/14 49/90-8/98