Subtract 56/63 from 54/45
1st number: 1 9/45, 2nd number: 56/63
54/45 - 56/63 is 14/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
54/45 = 54 × 7/45 × 7 = 378/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
56/63 = 56 × 5/63 × 5 = 280/315 - Subtract the two like fractions:
378/315 - 280/315 = 378 - 280/315 = 98/315 - After reducing the fraction, the answer is 14/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/90-56/63