Subtract 20/9 from 30/56
1st number: 30/56, 2nd number: 2 2/9
30/56 - 20/9 is -425/252.
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,
30/56 = 30 × 9/56 × 9 = 270/504 - Likewise, for the 2nd fraction, since 9 × 56 = 504,
20/9 = 20 × 56/9 × 56 = 1120/504 - Subtract the two like fractions:
270/504 - 1120/504 = 270 - 1120/504 = -850/504 - After reducing the fraction, the answer is -425/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/56-20/9 30/56-40/9 30/56-20/18 90/56-20/9 30/56-60/9 30/56-20/27 30/56-20/45 30/56-20/63