Add 81/2 and 8/18
1st number: 40 1/2, 2nd number: 8/18
81/2 + 8/18 is 737/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
81/2 = 81 × 9/2 × 9 = 729/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
8/18 = 8 × 1/18 × 1 = 8/18 - Add the two like fractions:
729/18 + 8/18 = 729 + 8/18 = 737/18 - So, 81/2 + 8/18 = 737/18
In mixed form: 4017/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/2+16/18 81/4+8/18 81/2+8/36 81/2+24/18 81/6+8/18 81/2+8/54 81/2+40/18 81/10+8/18 81/2+8/90 81/2+56/18 81/14+8/18