Subtract 3/27 from 12/84
12/84 - 3/27 is 2/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 27 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
12/84 = 12 × 9/84 × 9 = 108/756 - Likewise, for the 2nd fraction, since 27 × 28 = 756,
3/27 = 3 × 28/27 × 28 = 84/756 - Subtract the two like fractions:
108/756 - 84/756 = 108 - 84/756 = 24/756 - After reducing the fraction, the answer is 2/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/84-3/27 12/84-6/27 12/84-3/54 36/84-3/27 12/84-9/27 12/84-3/81 60/84-3/27 12/84-15/27 12/84-21/27