Subtract 1/28 from 30/27
1st number: 1 3/27, 2nd number: 1/28
30/27 - 1/28 is 271/252.
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,
30/27 = 30 × 28/27 × 28 = 840/756 - Likewise, for the 2nd fraction, since 28 × 27 = 756,
1/28 = 1 × 27/28 × 27 = 27/756 - Subtract the two like fractions:
840/756 - 27/756 = 840 - 27/756 = 813/756 - After reducing the fraction, the answer is 271/252
- In mixed form: 119/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/27-1/28 30/27-2/28 30/54-1/28 30/27-1/56 90/27-1/28 30/27-3/28 30/81-1/28 30/27-1/84 30/27-5/28 30/27-7/28