Subtract 9/7 from 9/63
1st number: 9/63, 2nd number: 1 2/7
9/63 - 9/7 is -8/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
9/63 = 9 × 1/63 × 1 = 9/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
9/7 = 9 × 9/7 × 9 = 81/63 - Subtract the two like fractions:
9/63 - 81/63 = 9 - 81/63 = -72/63 - After reducing the fraction, the answer is -8/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/63-9/7 9/63-18/7 9/63-9/14 27/63-9/7 9/63-27/7 9/63-9/21 45/63-9/7 9/63-45/7 9/63-9/35 9/63-63/7 9/63-9/49