Subtract 28/72 from 2/14
2/14 - 28/72 is -31/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 14 × 36 = 504,
2/14 = 2 × 36/14 × 36 = 72/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504 - Subtract the two like fractions:
72/504 - 196/504 = 72 - 196/504 = -124/504 - After reducing the fraction, the answer is -31/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/14-28/72 2/14-56/72 2/28-28/72 6/14-28/72 2/14-84/72 2/42-28/72 10/14-28/72 2/70-28/72 2/98-28/72