Subtract 27/32 from 20/25
20/25 - 27/32 is -7/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 32 is 800
Next, find the equivalent fraction of both fractional numbers with denominator 800 - For the 1st fraction, since 25 × 32 = 800,
20/25 = 20 × 32/25 × 32 = 640/800 - Likewise, for the 2nd fraction, since 32 × 25 = 800,
27/32 = 27 × 25/32 × 25 = 675/800 - Subtract the two like fractions:
640/800 - 675/800 = 640 - 675/800 = -35/800 - After reducing the fraction, the answer is -7/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25-27/32 20/25-54/32 20/50-27/32 20/25-27/64 60/25-27/32 20/25-81/32 20/75-27/32 20/25-27/96