Subtract 21/35 from 5/27
5/27 - 21/35 is -56/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 35 is 945
Next, find the equivalent fraction of both fractional numbers with denominator 945 - For the 1st fraction, since 27 × 35 = 945,
5/27 = 5 × 35/27 × 35 = 175/945 - Likewise, for the 2nd fraction, since 35 × 27 = 945,
21/35 = 21 × 27/35 × 27 = 567/945 - Subtract the two like fractions:
175/945 - 567/945 = 175 - 567/945 = -392/945 - After reducing the fraction, the answer is -56/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/27-21/35 5/27-42/35 5/54-21/35 5/27-21/70 15/27-21/35 5/27-63/35 5/81-21/35 25/27-21/35 35/27-21/35