Subtract 30/63 from 63/45
1st number: 1 18/45, 2nd number: 30/63
63/45 - 30/63 is 97/105.
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,
63/45 = 63 × 7/45 × 7 = 441/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
30/63 = 30 × 5/63 × 5 = 150/315 - Subtract the two like fractions:
441/315 - 150/315 = 441 - 150/315 = 291/315 - After reducing the fraction, the answer is 97/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/45-60/63 63/90-30/63 63/45-90/63