Subtract 2/15 from 8/84
8/84 - 2/15 is -4/105.
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,
8/84 = 8 × 5/84 × 5 = 40/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
2/15 = 2 × 28/15 × 28 = 56/420 - Subtract the two like fractions:
40/420 - 56/420 = 40 - 56/420 = -16/420 - After reducing the fraction, the answer is -4/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/84-2/15 8/84-4/15 8/84-2/30 24/84-2/15 8/84-6/15 8/84-2/45 40/84-2/15 8/84-10/15 8/84-2/75 56/84-2/15 8/84-14/15