Subtract 7/27 from 30/28
1st number: 1 2/28, 2nd number: 7/27
30/28 - 7/27 is 307/378.
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,
30/28 = 30 × 27/28 × 27 = 810/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
7/27 = 7 × 28/27 × 28 = 196/756 - Subtract the two like fractions:
810/756 - 196/756 = 810 - 196/756 = 614/756 - After reducing the fraction, the answer is 307/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-7/27 30/28-14/27 30/56-7/27 30/28-7/54 90/28-7/27 30/28-21/27 30/84-7/27 30/28-7/81 30/28-35/27 30/28-49/27