Subtract 4/18 from 12/28
12/28 - 4/18 is 13/63.
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,
12/28 = 12 × 9/28 × 9 = 108/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
4/18 = 4 × 14/18 × 14 = 56/252 - Subtract the two like fractions:
108/252 - 56/252 = 108 - 56/252 = 52/252 - After reducing the fraction, the answer is 13/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28-4/18 12/28-8/18 12/56-4/18 12/28-4/36 36/28-4/18 12/28-12/18 12/84-4/18 12/28-4/54 60/28-4/18 12/28-20/18 12/28-4/90 84/28-4/18 12/28-28/18