Subtract 1/28 from 18/63
18/63 - 1/28 is 1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
18/63 = 18 × 4/63 × 4 = 72/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
1/28 = 1 × 9/28 × 9 = 9/252 - Subtract the two like fractions:
72/252 - 9/252 = 72 - 9/252 = 63/252 - After reducing the fraction, the answer is 1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63-1/28 18/63-2/28 18/63-1/56 54/63-1/28 18/63-3/28 18/63-1/84 90/63-1/28 18/63-5/28 18/63-7/28