Add 90/6 and 40/18
1st number: 15 0/6, 2nd number: 2 4/18
90/6 + 40/18 is 155/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
90/6 = 90 × 3/6 × 3 = 270/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
40/18 = 40 × 1/18 × 1 = 40/18 - Add the two like fractions:
270/18 + 40/18 = 270 + 40/18 = 310/18 - 310/18 simplified gives 155/9
- So, 90/6 + 40/18 = 155/9
In mixed form: 172/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/6+80/18 90/12+40/18 90/6+40/36 90/18+40/18 90/6+40/54 90/30+40/18 90/6+40/90 90/42+40/18