Subtract 25/63 from 4/45
4/45 - 25/63 is -97/315.
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,
4/45 = 4 × 7/45 × 7 = 28/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
25/63 = 25 × 5/63 × 5 = 125/315 - Subtract the two like fractions:
28/315 - 125/315 = 28 - 125/315 = -97/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-25/63 4/45-50/63 4/90-25/63 12/45-25/63 4/45-75/63 20/45-25/63 28/45-25/63