Subtract 2/90 from 7/14
7/14 - 2/90 is 43/90.
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,
7/14 = 7 × 45/14 × 45 = 315/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
2/90 = 2 × 7/90 × 7 = 14/630 - Subtract the two like fractions:
315/630 - 14/630 = 315 - 14/630 = 301/630 - After reducing the fraction, the answer is 43/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 7/14-4/90 7/28-2/90 21/14-2/90 7/14-6/90 7/42-2/90 35/14-2/90 7/14-10/90 7/70-2/90 49/14-2/90 7/14-14/90 7/98-2/90