Subtract 4/18 from 28/63
28/63 - 4/18 is 2/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
28/63 = 28 × 2/63 × 2 = 56/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
4/18 = 4 × 7/18 × 7 = 28/126 - Subtract the two like fractions:
56/126 - 28/126 = 56 - 28/126 = 28/126 - After reducing the fraction, the answer is 2/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63-4/18 28/63-8/18 28/63-4/36 84/63-4/18 28/63-12/18 28/63-4/54 28/63-20/18 28/63-4/90 28/63-28/18