Subtract 1/54 from 30/28
1st number: 1 2/28, 2nd number: 1/54
30/28 - 1/54 is 199/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 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 54 × 14 = 756,
1/54 = 1 × 14/54 × 14 = 14/756 - Subtract the two like fractions:
810/756 - 14/756 = 810 - 14/756 = 796/756 - After reducing the fraction, the answer is 199/189
- In mixed form: 110/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-1/54 30/28-2/54 30/56-1/54 90/28-1/54 30/28-3/54 30/84-1/54 30/28-5/54 30/28-7/54