Add 30/8 and 5/18
1st number: 3 6/8, 2nd number: 5/18
30/8 + 5/18 is 145/36.
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,
5/18 = 5 × 4/18 × 4 = 20/72 - Add the two like fractions:
270/72 + 20/72 = 270 + 20/72 = 290/72 - 290/72 simplified gives 145/36
- So, 30/8 + 5/18 = 145/36
In mixed form: 41/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+5/18 30/8+10/18 30/16+5/18 30/8+5/36 90/8+5/18 30/8+15/18 30/24+5/18 30/8+5/54 30/8+25/18 30/40+5/18 30/8+5/90 30/8+35/18 30/56+5/18