Subtract 40/32 from 7/27
1st number: 7/27, 2nd number: 1 8/32
7/27 - 40/32 is -107/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 32 is 864
Next, find the equivalent fraction of both fractional numbers with denominator 864 - For the 1st fraction, since 27 × 32 = 864,
7/27 = 7 × 32/27 × 32 = 224/864 - Likewise, for the 2nd fraction, since 32 × 27 = 864,
40/32 = 40 × 27/32 × 27 = 1080/864 - Subtract the two like fractions:
224/864 - 1080/864 = 224 - 1080/864 = -856/864 - After reducing the fraction, the answer is -107/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/27-40/32 7/27-80/32 7/54-40/32 7/27-40/64 21/27-40/32 7/81-40/32 7/27-40/96 35/27-40/32 49/27-40/32