Subtract 2/27 from 21/10
1st number: 2 1/10, 2nd number: 2/27
21/10 - 2/27 is 547/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
21/10 = 21 × 27/10 × 27 = 567/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
2/27 = 2 × 10/27 × 10 = 20/270 - Subtract the two like fractions:
567/270 - 20/270 = 567 - 20/270 = 547/270 - In mixed form: 27/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10-2/27 21/10-4/27 21/20-2/27 21/10-2/54 63/10-2/27 21/10-6/27 21/30-2/27 21/10-2/81 21/10-10/27 21/50-2/27 21/10-14/27 21/70-2/27