Subtract 27/45 from 10/63
10/63 - 27/45 is -139/315.
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,
10/63 = 10 × 5/63 × 5 = 50/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
27/45 = 27 × 7/45 × 7 = 189/315 - Subtract the two like fractions:
50/315 - 189/315 = 50 - 189/315 = -139/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/63-27/45 10/63-54/45 10/63-27/90 30/63-27/45 10/63-81/45 50/63-27/45 70/63-27/45