Subtract 9/81 from 56/49
1st number: 1 7/49, 2nd number: 9/81
56/49 - 9/81 is 65/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 81 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 49 × 81 = 3969,
56/49 = 56 × 81/49 × 81 = 4536/3969 - Likewise, for the 2nd fraction, since 81 × 49 = 3969,
9/81 = 9 × 49/81 × 49 = 441/3969 - Subtract the two like fractions:
4536/3969 - 441/3969 = 4536 - 441/3969 = 4095/3969 - After reducing the fraction, the answer is 65/63
- In mixed form: 12/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/49-18/81 56/98-9/81 56/49-27/81 56/49-45/81 56/49-63/81