Add 54/27 and 30/18
1st number: 2 0/27, 2nd number: 1 12/18
54/27 + 30/18 is 11/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
54/27 = 54 × 2/27 × 2 = 108/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
30/18 = 30 × 3/18 × 3 = 90/54 - Add the two like fractions:
108/54 + 90/54 = 108 + 90/54 = 198/54 - 198/54 simplified gives 11/3
- So, 54/27 + 30/18 = 11/3
In mixed form: 32/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/27+60/18 54/27+30/36 54/27+90/18 54/81+30/18 54/27+30/54 54/27+30/90