Subtract 24/6 from 8/21
1st number: 8/21, 2nd number: 4 0/6
8/21 - 24/6 is -76/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
8/21 = 8 × 2/21 × 2 = 16/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
24/6 = 24 × 7/6 × 7 = 168/42 - Subtract the two like fractions:
16/42 - 168/42 = 16 - 168/42 = -152/42 - After reducing the fraction, the answer is -76/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21-24/6 8/21-48/6 8/42-24/6 8/21-24/12 24/21-24/6 8/21-72/6 8/63-24/6 8/21-24/18 40/21-24/6 8/21-24/30 56/21-24/6 8/21-24/42