Add 30/8 and 35/18
1st number: 3 6/8, 2nd number: 1 17/18
30/8 + 35/18 is 205/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
30/8 = 30 × 9/8 × 9 = 270/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
35/18 = 35 × 4/18 × 4 = 140/72 - Add the two like fractions:
270/72 + 140/72 = 270 + 140/72 = 410/72 - 410/72 simplified gives 205/36
- So, 30/8 + 35/18 = 205/36
In mixed form: 525/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+35/18 30/8+70/18 30/16+35/18 30/8+35/36 90/8+35/18 30/24+35/18 30/8+35/54 30/40+35/18 30/8+35/90 30/56+35/18