Add 56/8 and 81/40
1st number: 7 0/8, 2nd number: 2 1/40
56/8 + 81/40 is 361/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
56/8 = 56 × 5/8 × 5 = 280/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
81/40 = 81 × 1/40 × 1 = 81/40 - Add the two like fractions:
280/40 + 81/40 = 280 + 81/40 = 361/40 - So, 56/8 + 81/40 = 361/40
In mixed form: 91/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/16+81/40 56/8+81/80 56/24+81/40 56/40+81/40