Subtract 2/15 from 12/84
12/84 - 2/15 is 1/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
12/84 = 12 × 5/84 × 5 = 60/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
2/15 = 2 × 28/15 × 28 = 56/420 - Subtract the two like fractions:
60/420 - 56/420 = 60 - 56/420 = 4/420 - After reducing the fraction, the answer is 1/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/84-2/15 12/84-4/15 12/84-2/30 36/84-2/15 12/84-6/15 12/84-2/45 60/84-2/15 12/84-10/15 12/84-2/75 12/84-14/15