Subtract 54/63 from 3/28
3/28 - 54/63 is -3/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
3/28 = 3 × 9/28 × 9 = 27/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
54/63 = 54 × 4/63 × 4 = 216/252 - Subtract the two like fractions:
27/252 - 216/252 = 27 - 216/252 = -189/252 - After reducing the fraction, the answer is -3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-54/63 3/56-54/63 9/28-54/63 3/84-54/63 15/28-54/63 21/28-54/63