Subtract 7/40 from 25/27
25/27 - 7/40 is 811/1080.
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,
25/27 = 25 × 40/27 × 40 = 1000/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
7/40 = 7 × 27/40 × 27 = 189/1080 - Subtract the two like fractions:
1000/1080 - 189/1080 = 1000 - 189/1080 = 811/1080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/27-7/40 25/27-14/40 25/54-7/40 25/27-7/80 75/27-7/40 25/27-21/40 25/81-7/40 25/27-35/40 25/27-49/40