Add 10/18 and 30/8
1st number: 10/18, 2nd number: 3 6/8
10/18 + 30/8 is 155/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
10/18 = 10 × 4/18 × 4 = 40/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
30/8 = 30 × 9/8 × 9 = 270/72 - Add the two like fractions:
40/72 + 270/72 = 40 + 270/72 = 310/72 - 310/72 simplified gives 155/36
- So, 10/18 + 30/8 = 155/36
In mixed form: 411/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18+30/8 10/18+60/8 10/36+30/8 10/18+30/16 30/18+30/8 10/18+90/8 10/54+30/8 10/18+30/24 50/18+30/8 10/90+30/8 10/18+30/40 70/18+30/8 10/18+30/56