Add 18/27 and 45/6, Solve 18/27 + 7 3/6 as a fraction

Add 18/27 and 45/6

1^st number: 18/27, 2^nd number: 7 3/6

18/27 + 45/6 is 49/6.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 6 is 54

Next, find the equivalent fraction of both fractional numbers with denominator 54
For the 1st fraction, since 27 × 2 = 54,
18/27 = 18 × 2/27 × 2 = 36/54
Likewise, for the 2nd fraction, since 6 × 9 = 54,
45/6 = 45 × 9/6 × 9 = 405/54
Add the two like fractions:
36/54 + 405/54 = 36 + 405/54 = 441/54
441/54 simplified gives 49/6
So, 18/27 + 45/6 = 49/6
In mixed form: 81/6

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad