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