Add 42/5 and 9/18
1st number: 8 2/5, 2nd number: 9/18
42/5 + 9/18 is 89/10.
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,
9/18 = 9 × 5/18 × 5 = 45/90 - Add the two like fractions:
756/90 + 45/90 = 756 + 45/90 = 801/90 - 801/90 simplified gives 89/10
- So, 42/5 + 9/18 = 89/10
In mixed form: 89/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+9/18 42/10+9/18 42/5+9/36 42/5+27/18 42/15+9/18 42/5+9/54 42/5+45/18 42/25+9/18 42/5+9/90 42/5+63/18 42/35+9/18