Add 8/18 and 42/5
1st number: 8/18, 2nd number: 8 2/5
8/18 + 42/5 is 398/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
8/18 = 8 × 5/18 × 5 = 40/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
42/5 = 42 × 18/5 × 18 = 756/90 - Add the two like fractions:
40/90 + 756/90 = 40 + 756/90 = 796/90 - 796/90 simplified gives 398/45
- So, 8/18 + 42/5 = 398/45
In mixed form: 838/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/18+42/5 8/18+84/5 8/36+42/5 8/18+42/10 24/18+42/5 8/54+42/5 8/18+42/15 40/18+42/5 8/90+42/5 8/18+42/25 56/18+42/5 8/18+42/35