Subtract 6/21 from 14/72
14/72 - 6/21 is -23/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
14/72 = 14 × 7/72 × 7 = 98/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
6/21 = 6 × 24/21 × 24 = 144/504 - Subtract the two like fractions:
98/504 - 144/504 = 98 - 144/504 = -46/504 - After reducing the fraction, the answer is -23/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/72-6/21 14/72-12/21 14/72-6/42 42/72-6/21 14/72-18/21 14/72-6/63 70/72-6/21 14/72-30/21 98/72-6/21 14/72-42/21