Subtract 21/84 from 30/14
1st number: 2 2/14, 2nd number: 21/84
30/14 - 21/84 is 53/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 14 × 6 = 84,
30/14 = 30 × 6/14 × 6 = 180/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
21/84 = 21 × 1/84 × 1 = 21/84 - Subtract the two like fractions:
180/84 - 21/84 = 180 - 21/84 = 159/84 - After reducing the fraction, the answer is 53/28
- In mixed form: 125/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/14-21/84 30/14-42/84 30/28-21/84 90/14-21/84 30/14-63/84 30/42-21/84 30/70-21/84 30/98-21/84