Subtract 21/27 from 35/2
1st number: 17 1/2, 2nd number: 21/27
35/2 - 21/27 is 301/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 2 × 27 = 54,
35/2 = 35 × 27/2 × 27 = 945/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
21/27 = 21 × 2/27 × 2 = 42/54 - Subtract the two like fractions:
945/54 - 42/54 = 945 - 42/54 = 903/54 - After reducing the fraction, the answer is 301/18
- In mixed form: 1613/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/2-21/27 35/2-42/27 35/4-21/27 35/2-21/54 35/2-63/27 35/6-21/27 35/2-21/81 35/10-21/27 35/14-21/27