Subtract 63/18 from 56/28
1st number: 2 0/28, 2nd number: 3 9/18
56/28 - 63/18 is -3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
56/28 = 56 × 9/28 × 9 = 504/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
63/18 = 63 × 14/18 × 14 = 882/252 - Subtract the two like fractions:
504/252 - 882/252 = 504 - 882/252 = -378/252 - After reducing the fraction, the answer is -3/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/28-63/36 56/84-63/18 56/28-63/54 56/28-63/90