Add 18/6 and 30/90
1st number: 3 0/6, 2nd number: 30/90
18/6 + 30/90 is 10/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
18/6 = 18 × 15/6 × 15 = 270/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
30/90 = 30 × 1/90 × 1 = 30/90 - Add the two like fractions:
270/90 + 30/90 = 270 + 30/90 = 300/90 - 300/90 simplified gives 10/3
- So, 18/6 + 30/90 = 10/3
In mixed form: 31/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/6+30/90 18/6+60/90 18/12+30/90 54/6+30/90 90/6+30/90 18/30+30/90 18/42+30/90