Subtract 20/45 from 5/14
5/14 - 20/45 is -11/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
5/14 = 5 × 45/14 × 45 = 225/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
20/45 = 20 × 14/45 × 14 = 280/630 - Subtract the two like fractions:
225/630 - 280/630 = 225 - 280/630 = -55/630 - After reducing the fraction, the answer is -11/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/14-20/45 5/14-40/45 5/28-20/45 5/14-20/90 15/14-20/45 5/14-60/45 5/42-20/45 25/14-20/45 5/70-20/45 35/14-20/45 5/98-20/45