Add 30/18 and 42/27
1st number: 1 12/18, 2nd number: 1 15/27
30/18 + 42/27 is 29/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
30/18 = 30 × 3/18 × 3 = 90/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
42/27 = 42 × 2/27 × 2 = 84/54 - Add the two like fractions:
90/54 + 84/54 = 90 + 84/54 = 174/54 - 174/54 simplified gives 29/9
- So, 30/18 + 42/27 = 29/9
In mixed form: 32/9
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