Subtract 28/21 from 50/14
1st number: 3 8/14, 2nd number: 1 7/21
50/14 - 28/21 is 47/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
50/14 = 50 × 3/14 × 3 = 150/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
28/21 = 28 × 2/21 × 2 = 56/42 - Subtract the two like fractions:
150/42 - 56/42 = 150 - 56/42 = 94/42 - After reducing the fraction, the answer is 47/21
- In mixed form: 25/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/14-56/21 50/28-28/21 50/14-28/42 50/14-84/21 50/42-28/21 50/14-28/63 50/70-28/21 50/98-28/21