Subtract 45/14 from 28/27
1st number: 1 1/27, 2nd number: 3 3/14
28/27 - 45/14 is -823/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 14 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
28/27 = 28 × 14/27 × 14 = 392/378 - Likewise, for the 2nd fraction, since 14 × 27 = 378,
45/14 = 45 × 27/14 × 27 = 1215/378 - Subtract the two like fractions:
392/378 - 1215/378 = 392 - 1215/378 = -823/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/27-45/14 28/27-90/14 28/54-45/14 28/27-45/28 84/27-45/14 28/81-45/14 28/27-45/42 28/27-45/70 28/27-45/98