Subtract 1/84 from 3/28
3/28 - 1/84 is 2/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
3/28 = 3 × 3/28 × 3 = 9/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
1/84 = 1 × 1/84 × 1 = 1/84 - Subtract the two like fractions:
9/84 - 1/84 = 9 - 1/84 = 8/84 - After reducing the fraction, the answer is 2/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-1/84 3/28-2/84 3/56-1/84 9/28-1/84 3/28-3/84 3/84-1/84 15/28-1/84 3/28-5/84 21/28-1/84 3/28-7/84