Subtract 21/27 from 27/5
1st number: 5 2/5, 2nd number: 21/27
27/5 - 21/27 is 208/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 5 × 27 = 135,
27/5 = 27 × 27/5 × 27 = 729/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
21/27 = 21 × 5/27 × 5 = 105/135 - Subtract the two like fractions:
729/135 - 105/135 = 729 - 105/135 = 624/135 - After reducing the fraction, the answer is 208/45
- In mixed form: 428/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/5-21/27 27/5-42/27 27/10-21/27 27/5-21/54 81/5-21/27 27/5-63/27 27/15-21/27 27/5-21/81 27/25-21/27 27/35-21/27