Subtract 18/27 from 20/14
1st number: 1 6/14, 2nd number: 18/27
20/14 - 18/27 is 16/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 14 × 27 = 378,
20/14 = 20 × 27/14 × 27 = 540/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
18/27 = 18 × 14/27 × 14 = 252/378 - Subtract the two like fractions:
540/378 - 252/378 = 540 - 252/378 = 288/378 - After reducing the fraction, the answer is 16/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/14-18/27 20/14-36/27 20/28-18/27 20/14-18/54 60/14-18/27 20/14-54/27 20/42-18/27 20/14-18/81 20/14-90/27 20/70-18/27 20/98-18/27