Subtract 21/72 from 72/6
1st number: 12 0/6, 2nd number: 21/72
72/6 - 21/72 is 281/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
72/6 = 72 × 12/6 × 12 = 864/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Subtract the two like fractions:
864/72 - 21/72 = 864 - 21/72 = 843/72 - After reducing the fraction, the answer is 281/24
- In mixed form: 1117/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/6-42/72 72/12-21/72 72/6-63/72 72/18-21/72 72/30-21/72 72/42-21/72