Add 90/18 and 42/9
1st number: 5 0/18, 2nd number: 4 6/9
90/18 + 42/9 is 29/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
90/18 = 90 × 1/18 × 1 = 90/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
42/9 = 42 × 2/9 × 2 = 84/18 - Add the two like fractions:
90/18 + 84/18 = 90 + 84/18 = 174/18 - 174/18 simplified gives 29/3
- So, 90/18 + 42/9 = 29/3
In mixed form: 92/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+84/9 90/36+42/9 90/18+42/18 90/54+42/9 90/18+42/27 90/18+42/45 90/18+42/63