Subtract 7/27 from 12/40
12/40 - 7/27 is 11/270.
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,
12/40 = 12 × 27/40 × 27 = 324/1080 - Likewise, for the 2nd fraction, since 27 × 40 = 1080,
7/27 = 7 × 40/27 × 40 = 280/1080 - Subtract the two like fractions:
324/1080 - 280/1080 = 324 - 280/1080 = 44/1080 - After reducing the fraction, the answer is 11/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40-7/27 12/40-14/27 12/80-7/27 12/40-7/54 36/40-7/27 12/40-21/27 12/40-7/81 60/40-7/27 12/40-35/27 84/40-7/27 12/40-49/27