Subtract 9/21 from 27/5
1st number: 5 2/5, 2nd number: 9/21
27/5 - 9/21 is 174/35.
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,
9/21 = 9 × 5/21 × 5 = 45/105 - Subtract the two like fractions:
567/105 - 45/105 = 567 - 45/105 = 522/105 - After reducing the fraction, the answer is 174/35
- In mixed form: 434/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5-9/21 27/5-18/21 27/10-9/21 27/5-9/42 81/5-9/21 27/5-27/21 27/15-9/21 27/5-9/63 27/5-45/21 27/25-9/21 27/5-63/21 27/35-9/21