Add 30/8 and 4/18
1st number: 3 6/8, 2nd number: 4/18
30/8 + 4/18 is 143/36.
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,
4/18 = 4 × 4/18 × 4 = 16/72 - Add the two like fractions:
270/72 + 16/72 = 270 + 16/72 = 286/72 - 286/72 simplified gives 143/36
- So, 30/8 + 4/18 = 143/36
In mixed form: 335/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+4/18 30/8+8/18 30/16+4/18 30/8+4/36 90/8+4/18 30/8+12/18 30/24+4/18 30/8+4/54 30/8+20/18 30/40+4/18 30/8+4/90 30/8+28/18 30/56+4/18