Subtract 27/5 from 30/15
1st number: 2 0/15, 2nd number: 5 2/5
30/15 - 27/5 is -17/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 5 is 15
Next, find the equivalent fraction of both fractional numbers with denominator 15 - For the 1st fraction, since 15 × 1 = 15,
30/15 = 30 × 1/15 × 1 = 30/15 - Likewise, for the 2nd fraction, since 5 × 3 = 15,
27/5 = 27 × 3/5 × 3 = 81/15 - Subtract the two like fractions:
30/15 - 81/15 = 30 - 81/15 = -51/15 - After reducing the fraction, the answer is -17/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15-27/5 30/15-54/5 30/15-27/10 90/15-27/5 30/15-81/5 30/45-27/5 30/15-27/15 30/75-27/5 30/15-27/25 30/15-27/35