Subtract 6/27 from 28/40
28/40 - 6/27 is 43/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
28/40 = 28 × 27/40 × 27 = 756/1080 - Likewise, for the 2nd fraction, since 27 × 40 = 1080,
6/27 = 6 × 40/27 × 40 = 240/1080 - Subtract the two like fractions:
756/1080 - 240/1080 = 756 - 240/1080 = 516/1080 - After reducing the fraction, the answer is 43/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40-6/27 28/40-12/27 28/80-6/27 28/40-6/54 84/40-6/27 28/40-18/27 28/40-6/81 28/40-30/27 28/40-42/27