Subtract 54/18 from 48/63
1st number: 48/63, 2nd number: 3 0/18
48/63 - 54/18 is -47/21.
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,
48/63 = 48 × 2/63 × 2 = 96/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
54/18 = 54 × 7/18 × 7 = 378/126 - Subtract the two like fractions:
96/126 - 378/126 = 96 - 378/126 = -282/126 - After reducing the fraction, the answer is -47/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/63-54/18 48/63-54/36 48/63-54/90