Subtract 21/15 from 6/2
1st number: 3 0/2, 2nd number: 1 6/15
6/2 - 21/15 is 8/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
6/2 = 6 × 15/2 × 15 = 90/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30 - Subtract the two like fractions:
90/30 - 42/30 = 90 - 42/30 = 48/30 - After reducing the fraction, the answer is 8/5
- In mixed form: 13/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/2-21/15 6/2-42/15 6/4-21/15 6/2-21/30 18/2-21/15 6/2-63/15 6/2-21/45 30/2-21/15 6/10-21/15 6/2-21/75 42/2-21/15 6/14-21/15