Subtract 14/35 from 21/27
21/27 - 14/35 is 17/45.
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,
21/27 = 21 × 35/27 × 35 = 735/945 - Likewise, for the 2nd fraction, since 35 × 27 = 945,
14/35 = 14 × 27/35 × 27 = 378/945 - Subtract the two like fractions:
735/945 - 378/945 = 735 - 378/945 = 357/945 - After reducing the fraction, the answer is 17/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27-14/35 21/27-28/35 21/54-14/35 21/27-14/70 63/27-14/35 21/27-42/35 21/81-14/35 21/27-70/35 21/27-98/35