Subtract 2/28 from 21/6
1st number: 3 3/6, 2nd number: 2/28
21/6 - 2/28 is 24/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 6 × 14 = 84,
21/6 = 21 × 14/6 × 14 = 294/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
2/28 = 2 × 3/28 × 3 = 6/84 - Subtract the two like fractions:
294/84 - 6/84 = 294 - 6/84 = 288/84 - After reducing the fraction, the answer is 24/7
- In mixed form: 33/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-2/28 21/6-4/28 21/12-2/28 21/6-2/56 63/6-2/28 21/6-6/28 21/18-2/28 21/6-2/84 21/6-10/28 21/30-2/28 21/6-14/28 21/42-2/28