Subtract 35/8 from 56/81
1st number: 56/81, 2nd number: 4 3/8
56/81 - 35/8 is -2387/648.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
56/81 = 56 × 8/81 × 8 = 448/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
35/8 = 35 × 81/8 × 81 = 2835/648 - Subtract the two like fractions:
448/648 - 2835/648 = 448 - 2835/648 = -2387/648
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/81-70/8 56/81-35/16 56/81-35/24 56/81-35/40 56/81-35/56