Subtract 20/45 from 4/14
4/14 - 20/45 is -10/63.
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,
4/14 = 4 × 45/14 × 45 = 180/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
20/45 = 20 × 14/45 × 14 = 280/630 - Subtract the two like fractions:
180/630 - 280/630 = 180 - 280/630 = -100/630 - After reducing the fraction, the answer is -10/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/14-20/45 4/14-40/45 4/28-20/45 4/14-20/90 12/14-20/45 4/14-60/45 4/42-20/45 20/14-20/45 4/70-20/45 28/14-20/45 4/98-20/45