Add 18/27 and 15/42
18/27 + 15/42 is 43/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
18/27 = 18 × 14/27 × 14 = 252/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
15/42 = 15 × 9/42 × 9 = 135/378 - Add the two like fractions:
252/378 + 135/378 = 252 + 135/378 = 387/378 - 387/378 simplified gives 43/42
- So, 18/27 + 15/42 = 43/42
In mixed form: 11/42
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