Subtract 75/18 from 30/56
1st number: 30/56, 2nd number: 4 3/18
30/56 - 75/18 is -305/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 18 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 18 × 28 = 504,
75/18 = 75 × 28/18 × 28 = 2100/504 - Subtract the two like fractions:
270/504 - 2100/504 = 270 - 2100/504 = -1830/504 - After reducing the fraction, the answer is -305/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/56-75/18 30/56-75/36 90/56-75/18 30/56-75/54 30/56-75/90