Add 54/81 and 42/27
1st number: 54/81, 2nd number: 1 15/27
54/81 + 42/27 is 20/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 27 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
54/81 = 54 × 1/81 × 1 = 54/81 - Likewise, for the 2nd fraction, since 27 × 3 = 81,
42/27 = 42 × 3/27 × 3 = 126/81 - Add the two like fractions:
54/81 + 126/81 = 54 + 126/81 = 180/81 - 180/81 simplified gives 20/9
- So, 54/81 + 42/27 = 20/9
In mixed form: 22/9
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