Subtract 5/63 from 3/45
3/45 - 5/63 is -4/315.
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,
3/45 = 3 × 7/45 × 7 = 21/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
5/63 = 5 × 5/63 × 5 = 25/315 - Subtract the two like fractions:
21/315 - 25/315 = 21 - 25/315 = -4/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/45-5/63 3/45-10/63 3/90-5/63 9/45-5/63 3/45-15/63 15/45-5/63 3/45-25/63 21/45-5/63 3/45-35/63