Subtract 2/15 from 20/54
20/54 - 2/15 is 32/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 15 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
20/54 = 20 × 5/54 × 5 = 100/270 - Likewise, for the 2nd fraction, since 15 × 18 = 270,
2/15 = 2 × 18/15 × 18 = 36/270 - Subtract the two like fractions:
100/270 - 36/270 = 100 - 36/270 = 64/270 - After reducing the fraction, the answer is 32/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/54-2/15 20/54-4/15 20/54-2/30 60/54-2/15 20/54-6/15 20/54-2/45 20/54-10/15 20/54-2/75 20/54-14/15