Subtract 70/9 from 27/56
1st number: 27/56, 2nd number: 7 7/9
27/56 - 70/9 is -3677/504.
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,
27/56 = 27 × 9/56 × 9 = 243/504 - Likewise, for the 2nd fraction, since 9 × 56 = 504,
70/9 = 70 × 56/9 × 56 = 3920/504 - Subtract the two like fractions:
243/504 - 3920/504 = 243 - 3920/504 = -3677/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56-70/9 27/56-70/18 81/56-70/9 27/56-70/27 27/56-70/45 27/56-70/63