Add 18/27 and 42/54
18/27 + 42/54 is 13/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 54 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 54 × 1 = 54,
42/54 = 42 × 1/54 × 1 = 42/54 - Add the two like fractions:
36/54 + 42/54 = 36 + 42/54 = 78/54 - 78/54 simplified gives 13/9
- So, 18/27 + 42/54 = 13/9
In mixed form: 14/9
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