Subtract 2/3 from 12/84
12/84 - 2/3 is -11/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
12/84 = 12 × 1/84 × 1 = 12/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
2/3 = 2 × 28/3 × 28 = 56/84 - Subtract the two like fractions:
12/84 - 56/84 = 12 - 56/84 = -44/84 - After reducing the fraction, the answer is -11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/84-2/3 12/84-4/3 12/84-2/6 36/84-2/3 12/84-6/3 12/84-2/9 60/84-2/3 12/84-10/3 12/84-2/15 12/84-14/3 12/84-2/21