Subtract 21/72 from 14/4
1st number: 3 2/4, 2nd number: 21/72
14/4 - 21/72 is 77/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
14/4 = 14 × 18/4 × 18 = 252/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Subtract the two like fractions:
252/72 - 21/72 = 252 - 21/72 = 231/72 - After reducing the fraction, the answer is 77/24
- In mixed form: 35/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/4-21/72 14/4-42/72 14/8-21/72 42/4-21/72 14/4-63/72 14/12-21/72 70/4-21/72 14/20-21/72 98/4-21/72 14/28-21/72