Add 9/18 and 42/5
1st number: 9/18, 2nd number: 8 2/5
9/18 + 42/5 is 89/10.
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,
9/18 = 9 × 5/18 × 5 = 45/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
42/5 = 42 × 18/5 × 18 = 756/90 - Add the two like fractions:
45/90 + 756/90 = 45 + 756/90 = 801/90 - 801/90 simplified gives 89/10
- So, 9/18 + 42/5 = 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: 9/18+84/5 9/36+42/5 9/18+42/10 27/18+42/5 9/54+42/5 9/18+42/15 45/18+42/5 9/90+42/5 9/18+42/25 63/18+42/5 9/18+42/35