Subtract 8/27 from 21/3
1st number: 7 0/3, 2nd number: 8/27
21/3 - 8/27 is 181/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 27 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 3 × 9 = 27,
21/3 = 21 × 9/3 × 9 = 189/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
8/27 = 8 × 1/27 × 1 = 8/27 - Subtract the two like fractions:
189/27 - 8/27 = 189 - 8/27 = 181/27 - In mixed form: 619/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3-8/27 21/3-16/27 21/6-8/27 21/3-8/54 63/3-8/27 21/3-24/27 21/9-8/27 21/3-8/81 21/3-40/27 21/15-8/27 21/3-56/27