Add 28/36 and 42/81
28/36 + 42/81 is 35/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
28/36 = 28 × 9/36 × 9 = 252/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
42/81 = 42 × 4/81 × 4 = 168/324 - Add the two like fractions:
252/324 + 168/324 = 252 + 168/324 = 420/324 - 420/324 simplified gives 35/27
- So, 28/36 + 42/81 = 35/27
In mixed form: 18/27
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