Subtract 1/28 from 4/27
4/27 - 1/28 is 85/756.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 28 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 27 × 28 = 756,
4/27 = 4 × 28/27 × 28 = 112/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
1/28 = 1 × 27/28 × 27 = 27/756 - Subtract the two like fractions:
112/756 - 27/756 = 112 - 27/756 = 85/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/27-1/28 4/27-2/28 4/54-1/28 4/27-1/56 12/27-1/28 4/27-3/28 4/81-1/28 4/27-1/84 20/27-1/28 4/27-5/28 28/27-1/28 4/27-7/28