Subtract 1/35 from 21/27
21/27 - 1/35 is 236/315.
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,
1/35 = 1 × 27/35 × 27 = 27/945 - Subtract the two like fractions:
735/945 - 27/945 = 735 - 27/945 = 708/945 - After reducing the fraction, the answer is 236/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/27-1/35 21/27-2/35 21/54-1/35 21/27-1/70 63/27-1/35 21/27-3/35 21/81-1/35 21/27-5/35 21/27-7/35