Subtract 15/54 from 2/84
2/84 - 15/54 is -16/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
2/84 = 2 × 9/84 × 9 = 18/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
15/54 = 15 × 14/54 × 14 = 210/756 - Subtract the two like fractions:
18/756 - 210/756 = 18 - 210/756 = -192/756 - After reducing the fraction, the answer is -16/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/84-15/54 2/84-30/54 6/84-15/54 2/84-45/54 10/84-15/54 2/84-75/54 14/84-15/54