Subtract 63/5 from 81/9
1st number: 9 0/9, 2nd number: 12 3/5
81/9 - 63/5 is -18/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
81/9 = 81 × 5/9 × 5 = 405/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
63/5 = 63 × 9/5 × 9 = 567/45 - Subtract the two like fractions:
405/45 - 567/45 = 405 - 567/45 = -162/45 - After reducing the fraction, the answer is -18/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/18-63/5 81/9-63/10 81/27-63/5 81/9-63/15 81/45-63/5 81/9-63/25 81/63-63/5 81/9-63/35