Subtract 12/21 from 80/6
1st number: 13 2/6, 2nd number: 12/21
80/6 - 12/21 is 268/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
80/6 = 80 × 7/6 × 7 = 560/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
12/21 = 12 × 2/21 × 2 = 24/42 - Subtract the two like fractions:
560/42 - 24/42 = 560 - 24/42 = 536/42 - After reducing the fraction, the answer is 268/21
- In mixed form: 1216/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-24/21 80/12-12/21 80/6-12/42 80/6-36/21 80/18-12/21 80/6-12/63 80/6-60/21 80/30-12/21 80/6-84/21 80/42-12/21