Subtract 10/21 from 27/2
1st number: 13 1/2, 2nd number: 10/21
272 - 1021 is 54742.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
272 = 27 × 212 × 21 = 56742 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
1021 = 10 × 221 × 2 = 2042 - Subtract the two like fractions:
56742 - 2042 = 567 - 2042 = 54742 - In mixed form: 13142
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/2-10/21 27/2-20/21 27/4-10/21 27/2-10/42 81/2-10/21 27/2-30/21 27/6-10/21 27/2-10/63 27/2-50/21 27/10-10/21 27/2-70/21 27/14-10/21