Subtract 2/63 from 81/7
1st number: 11 4/7, 2nd number: 2/63
81/7 - 2/63 is 727/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
81/7 = 81 × 9/7 × 9 = 729/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
2/63 = 2 × 1/63 × 1 = 2/63 - Subtract the two like fractions:
729/63 - 2/63 = 729 - 2/63 = 727/63 - In mixed form: 1134/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/7-4/63 81/14-2/63 81/7-6/63 81/21-2/63 81/7-10/63 81/35-2/63 81/7-14/63 81/49-2/63