Subtract 4/40 from 2/27
2/27 - 4/40 is -7/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 27 × 40 = 1080,
2/27 = 2 × 40/27 × 40 = 80/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
4/40 = 4 × 27/40 × 27 = 108/1080 - Subtract the two like fractions:
80/1080 - 108/1080 = 80 - 108/1080 = -28/1080 - After reducing the fraction, the answer is -7/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/27-4/40 2/27-8/40 2/54-4/40 2/27-4/80 6/27-4/40 2/27-12/40 2/81-4/40 10/27-4/40 2/27-20/40 14/27-4/40 2/27-28/40