Subtract 4/27 from 27/28
27/28 - 4/27 is 617/756.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
27/28 = 27 × 27/28 × 27 = 729/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
4/27 = 4 × 28/27 × 28 = 112/756 - Subtract the two like fractions:
729/756 - 112/756 = 729 - 112/756 = 617/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28-4/27 27/28-8/27 27/56-4/27 27/28-4/54 81/28-4/27 27/28-12/27 27/84-4/27 27/28-4/81 27/28-20/27 27/28-28/27