Subtract 80/8 from 15/63
1st number: 15/63, 2nd number: 10 0/8
15/63 - 80/8 is -205/21.
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,
15/63 = 15 × 8/63 × 8 = 120/504 - Likewise, for the 2nd fraction, since 8 × 63 = 504,
80/8 = 80 × 63/8 × 63 = 5040/504 - Subtract the two like fractions:
120/504 - 5040/504 = 120 - 5040/504 = -4920/504 - After reducing the fraction, the answer is -205/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63-80/8 15/63-80/16 45/63-80/8 15/63-80/24 75/63-80/8 15/63-80/40 15/63-80/56