Subtract 2/56 from 15/18
15/18 - 2/56 is 67/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
15/18 = 15 × 28/18 × 28 = 420/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
2/56 = 2 × 9/56 × 9 = 18/504 - Subtract the two like fractions:
420/504 - 18/504 = 420 - 18/504 = 402/504 - After reducing the fraction, the answer is 67/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18-2/56 15/18-4/56 15/36-2/56 45/18-2/56 15/18-6/56 15/54-2/56 75/18-2/56 15/18-10/56 15/90-2/56 15/18-14/56