Subtract 20/45 from 12/14
12/14 - 20/45 is 26/63.
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,
12/14 = 12 × 45/14 × 45 = 540/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
20/45 = 20 × 14/45 × 14 = 280/630 - Subtract the two like fractions:
540/630 - 280/630 = 540 - 280/630 = 260/630 - After reducing the fraction, the answer is 26/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14-20/45 12/14-40/45 12/28-20/45 12/14-20/90 36/14-20/45 12/14-60/45 12/42-20/45 60/14-20/45 12/70-20/45 84/14-20/45 12/98-20/45