Subtract 1/27 from 20/75
20/75 - 1/27 is 31/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 27 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 75 × 9 = 675,
20/75 = 20 × 9/75 × 9 = 180/675 - Likewise, for the 2nd fraction, since 27 × 25 = 675,
1/27 = 1 × 25/27 × 25 = 25/675 - Subtract the two like fractions:
180/675 - 25/675 = 180 - 25/675 = 155/675 - After reducing the fraction, the answer is 31/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75-1/27 20/75-2/27 20/75-1/54 60/75-1/27 20/75-3/27 20/75-1/81 20/75-5/27 20/75-7/27