Subtract 15/40 from 4/27
4/27 - 15/40 is -49/216.
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,
4/27 = 4 × 40/27 × 40 = 160/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
15/40 = 15 × 27/40 × 27 = 405/1080 - Subtract the two like fractions:
160/1080 - 405/1080 = 160 - 405/1080 = -245/1080 - After reducing the fraction, the answer is -49/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/27-15/40 4/27-30/40 4/54-15/40 4/27-15/80 12/27-15/40 4/27-45/40 4/81-15/40 20/27-15/40 4/27-75/40 28/27-15/40