Add 18/27 and 90/8
1st number: 18/27, 2nd number: 11 2/8
18/27 + 90/8 is 143/12.
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,
90/8 = 90 × 27/8 × 27 = 2430/216 - Add the two like fractions:
144/216 + 2430/216 = 144 + 2430/216 = 2574/216 - 2574/216 simplified gives 143/12
- So, 18/27 + 90/8 = 143/12
In mixed form: 1111/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/27+90/8 18/54+90/8 18/27+90/16 54/27+90/8 18/81+90/8 18/27+90/24 90/27+90/8 18/27+90/40 18/27+90/56