Subtract 20/8 from 20/63
1st number: 20/63, 2nd number: 2 4/8
20/63 - 20/8 is -275/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 8 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
20/63 = 20 × 8/63 × 8 = 160/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
20/8 = 20 × 63/8 × 63 = 1260/504 - Subtract the two like fractions:
160/504 - 1260/504 = 160 - 1260/504 = -1100/504 - After reducing the fraction, the answer is -275/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/63-20/8 20/63-40/8 20/63-20/16 60/63-20/8 20/63-60/8 20/63-20/24 20/63-20/40 20/63-20/56