Subtract 8/20 from 2/54
2/54 - 8/20 is -49/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
2/54 = 2 × 10/54 × 10 = 20/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
8/20 = 8 × 27/20 × 27 = 216/540 - Subtract the two like fractions:
20/540 - 216/540 = 20 - 216/540 = -196/540 - After reducing the fraction, the answer is -49/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/54-8/20 2/54-16/20 2/54-8/40 6/54-8/20 2/54-24/20 2/54-8/60 10/54-8/20 2/54-40/20 14/54-8/20 2/54-56/20