Subtract 21/6 from 3/28
1st number: 3/28, 2nd number: 3 3/6
3/28 - 21/6 is -95/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 6 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 6 × 14 = 84,
21/6 = 21 × 14/6 × 14 = 294/84 - Subtract the two like fractions:
9/84 - 294/84 = 9 - 294/84 = -285/84 - After reducing the fraction, the answer is -95/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-21/6 3/28-42/6 3/56-21/6 3/28-21/12 9/28-21/6 3/28-63/6 3/84-21/6 3/28-21/18 15/28-21/6 3/28-21/30 21/28-21/6 3/28-21/42