Subtract 4/45 from 12/63
12/63 - 4/45 is 32/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
12/63 = 12 × 5/63 × 5 = 60/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
4/45 = 4 × 7/45 × 7 = 28/315 - Subtract the two like fractions:
60/315 - 28/315 = 60 - 28/315 = 32/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/63-4/45 12/63-8/45 12/63-4/90 36/63-4/45 12/63-12/45 60/63-4/45 12/63-20/45 84/63-4/45 12/63-28/45