Subtract 8/40 from 1/54
1/54 - 8/40 is -49/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 54 × 20 = 1080,
1/54 = 1 × 20/54 × 20 = 20/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
8/40 = 8 × 27/40 × 27 = 216/1080 - Subtract the two like fractions:
20/1080 - 216/1080 = 20 - 216/1080 = -196/1080 - After reducing the fraction, the answer is -49/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/54-8/40 1/54-16/40 1/54-8/80 3/54-8/40 1/54-24/40 5/54-8/40 7/54-8/40 1/54-56/40