Subtract 2/20 from 9/54
9/54 - 2/20 is 1/15.
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,
9/54 = 9 × 10/54 × 10 = 90/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
2/20 = 2 × 27/20 × 27 = 54/540 - Subtract the two like fractions:
90/540 - 54/540 = 90 - 54/540 = 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: 18/54-2/20 9/54-4/20 9/54-2/40 27/54-2/20 9/54-6/20 9/54-2/60 45/54-2/20 9/54-10/20 63/54-2/20 9/54-14/20