Add 18/42 and 28/27
1st number: 18/42, 2nd number: 1 1/27
18/42 + 28/27 is 277/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
18/42 = 18 × 9/42 × 9 = 162/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
28/27 = 28 × 14/27 × 14 = 392/378 - Add the two like fractions:
162/378 + 392/378 = 162 + 392/378 = 554/378 - 554/378 simplified gives 277/189
- So, 18/42 + 28/27 = 277/189
In mixed form: 188/189
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