Add 18/27 and 12/8
1st number: 18/27, 2nd number: 1 4/8
18/27 + 12/8 is 13/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
18/27 = 18 × 8/27 × 8 = 144/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
12/8 = 12 × 27/8 × 27 = 324/216 - Add the two like fractions:
144/216 + 324/216 = 144 + 324/216 = 468/216 - 468/216 simplified gives 13/6
- So, 18/27 + 12/8 = 13/6
In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/27+12/8 18/27+24/8 18/54+12/8 18/27+12/16 54/27+12/8 18/27+36/8 18/81+12/8 18/27+12/24 90/27+12/8 18/27+60/8 18/27+12/40 18/27+84/8 18/27+12/56