Subtract 15/9 from 12/56
1st number: 12/56, 2nd number: 1 6/9
12/56 - 15/9 is -61/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 9 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
12/56 = 12 × 9/56 × 9 = 108/504 - Likewise, for the 2nd fraction, since 9 × 56 = 504,
15/9 = 15 × 56/9 × 56 = 840/504 - Subtract the two like fractions:
108/504 - 840/504 = 108 - 840/504 = -732/504 - After reducing the fraction, the answer is -61/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/56-15/9 12/56-30/9 12/56-15/18 36/56-15/9 12/56-45/9 12/56-15/27 60/56-15/9 12/56-75/9 12/56-15/45 84/56-15/9 12/56-15/63