Subtract 42/56 from 1/9
1/9 - 42/56 is -23/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 9 × 56 = 504,
1/9 = 1 × 56/9 × 56 = 56/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
42/56 = 42 × 9/56 × 9 = 378/504 - Subtract the two like fractions:
56/504 - 378/504 = 56 - 378/504 = -322/504 - After reducing the fraction, the answer is -23/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/9-42/56 1/9-84/56 1/18-42/56 3/9-42/56 1/27-42/56 5/9-42/56 1/45-42/56 7/9-42/56 1/63-42/56