Subtract 15/21 from 14/4
1st number: 3 2/4, 2nd number: 15/21
14/4 - 15/21 is 39/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
14/4 = 14 × 21/4 × 21 = 294/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
15/21 = 15 × 4/21 × 4 = 60/84 - Subtract the two like fractions:
294/84 - 60/84 = 294 - 60/84 = 234/84 - After reducing the fraction, the answer is 39/14
- In mixed form: 211/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/4-15/21 14/4-30/21 14/8-15/21 14/4-15/42 42/4-15/21 14/4-45/21 14/12-15/21 14/4-15/63 70/4-15/21 14/4-75/21 14/20-15/21 98/4-15/21 14/28-15/21