Subtract 80/84 from 5/12
5/12 - 80/84 is -15/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
5/12 = 5 × 7/12 × 7 = 35/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
80/84 = 80 × 1/84 × 1 = 80/84 - Subtract the two like fractions:
35/84 - 80/84 = 35 - 80/84 = -45/84 - After reducing the fraction, the answer is -15/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/12-80/84 5/24-80/84 15/12-80/84 5/36-80/84 25/12-80/84 5/60-80/84 35/12-80/84 5/84-80/84