Subtract 21/72 from 14/8
1st number: 1 6/8, 2nd number: 21/72
14/8 - 21/72 is 35/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
14/8 = 14 × 9/8 × 9 = 126/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Subtract the two like fractions:
126/72 - 21/72 = 126 - 21/72 = 105/72 - After reducing the fraction, the answer is 35/24
- In mixed form: 111/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/8-21/72 14/8-42/72 14/16-21/72 42/8-21/72 14/8-63/72 14/24-21/72 70/8-21/72 14/40-21/72 98/8-21/72 14/56-21/72