Subtract 80/12 from 9/84
1st number: 9/84, 2nd number: 6 8/12
9/84 - 80/12 is -551/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
9/84 = 9 × 1/84 × 1 = 9/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
80/12 = 80 × 7/12 × 7 = 560/84 - Subtract the two like fractions:
9/84 - 560/84 = 9 - 560/84 = -551/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/84-80/12 9/84-80/24 27/84-80/12 9/84-80/36 45/84-80/12 9/84-80/60 63/84-80/12 9/84-80/84