Subtract 12/56 from 6/72
6/72 - 12/56 is -11/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
6/72 = 6 × 7/72 × 7 = 42/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
12/56 = 12 × 9/56 × 9 = 108/504 - Subtract the two like fractions:
42/504 - 108/504 = 42 - 108/504 = -66/504 - After reducing the fraction, the answer is -11/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/72-12/56 6/72-24/56 18/72-12/56 6/72-36/56 30/72-12/56 6/72-60/56 42/72-12/56 6/72-84/56