Add 18/27 and 54/42
1st number: 18/27, 2nd number: 1 12/42
18/27 + 54/42 is 41/21.
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,
54/42 = 54 × 9/42 × 9 = 486/378 - Add the two like fractions:
252/378 + 486/378 = 252 + 486/378 = 738/378 - 738/378 simplified gives 41/21
- So, 18/27 + 54/42 = 41/21
In mixed form: 120/21
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