Subtract 81/7 from 2/63
1st number: 2/63, 2nd number: 11 4/7
2/63 - 81/7 is -727/63.
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,
2/63 = 2 × 1/63 × 1 = 2/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
81/7 = 81 × 9/7 × 9 = 729/63 - Subtract the two like fractions:
2/63 - 729/63 = 2 - 729/63 = -727/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/63-81/7 2/63-81/14 6/63-81/7 2/63-81/21 10/63-81/7 2/63-81/35 14/63-81/7 2/63-81/49