Subtract 10/54 from 28/20
1st number: 1 8/20, 2nd number: 10/54
28/20 - 10/54 is 164/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
28/20 = 28 × 27/20 × 27 = 756/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
10/54 = 10 × 10/54 × 10 = 100/540 - Subtract the two like fractions:
756/540 - 100/540 = 756 - 100/540 = 656/540 - After reducing the fraction, the answer is 164/135
- In mixed form: 129/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20-10/54 28/20-20/54 28/40-10/54 84/20-10/54 28/20-30/54 28/60-10/54 28/20-50/54 28/20-70/54