Subtract 10/21 from 27/5
1st number: 5 2/5, 2nd number: 10/21
27/5 - 10/21 is 517/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
27/5 = 27 × 21/5 × 21 = 567/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
10/21 = 10 × 5/21 × 5 = 50/105 - Subtract the two like fractions:
567/105 - 50/105 = 567 - 50/105 = 517/105 - In mixed form: 497/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5-10/21 27/5-20/21 27/10-10/21 27/5-10/42 81/5-10/21 27/5-30/21 27/15-10/21 27/5-10/63 27/5-50/21 27/25-10/21 27/5-70/21 27/35-10/21