Subtract 7/12 from 9/84
9/84 - 7/12 is -10/21.
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,
7/12 = 7 × 7/12 × 7 = 49/84 - Subtract the two like fractions:
9/84 - 49/84 = 9 - 49/84 = -40/84 - After reducing the fraction, the answer is -10/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/84-7/12 9/84-14/12 9/84-7/24 27/84-7/12 9/84-21/12 9/84-7/36 45/84-7/12 9/84-35/12 9/84-7/60 63/84-7/12 9/84-49/12 9/84-7/84