Subtract 27/30 from 28/5
1st number: 5 3/5, 2nd number: 27/30
28/5 - 27/30 is 47/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 5 × 6 = 30,
28/5 = 28 × 6/5 × 6 = 168/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
27/30 = 27 × 1/30 × 1 = 27/30 - Subtract the two like fractions:
168/30 - 27/30 = 168 - 27/30 = 141/30 - After reducing the fraction, the answer is 47/10
- In mixed form: 47/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/5-27/30 28/5-54/30 28/10-27/30 28/5-27/60 84/5-27/30 28/5-81/30 28/15-27/30 28/5-27/90 28/25-27/30 28/35-27/30