Subtract 9/54 from 2/20
2/20 - 9/54 is -1/15.
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,
2/20 = 2 × 27/20 × 27 = 54/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
9/54 = 9 × 10/54 × 10 = 90/540 - Subtract the two like fractions:
54/540 - 90/540 = 54 - 90/540 = -36/540 - After reducing the fraction, the answer is -1/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20-9/54 2/20-18/54 2/40-9/54 6/20-9/54 2/20-27/54 2/60-9/54 10/20-9/54 2/20-45/54 14/20-9/54 2/20-63/54