Subtract 27/42 from 27/75
27/75 - 27/42 is -99/350.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
27/75 = 27 × 14/75 × 14 = 378/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
27/42 = 27 × 25/42 × 25 = 675/1050 - Subtract the two like fractions:
378/1050 - 675/1050 = 378 - 675/1050 = -297/1050 - After reducing the fraction, the answer is -99/350
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/75-27/42 27/75-54/42 27/75-27/84 81/75-27/42 27/75-81/42