Add 42/5 and 8/18
1st number: 8 2/5, 2nd number: 8/18
42/5 + 8/18 is 398/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
42/5 = 42 × 18/5 × 18 = 756/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
8/18 = 8 × 5/18 × 5 = 40/90 - Add the two like fractions:
756/90 + 40/90 = 756 + 40/90 = 796/90 - 796/90 simplified gives 398/45
- So, 42/5 + 8/18 = 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: 84/5+8/18 42/5+16/18 42/10+8/18 42/5+8/36 42/5+24/18 42/15+8/18 42/5+8/54 42/5+40/18 42/25+8/18 42/5+8/90 42/5+56/18 42/35+8/18