Add 25/36 and 21/81
25/36 + 21/81 is 103/108.
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,
25/36 = 25 × 9/36 × 9 = 225/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
21/81 = 21 × 4/81 × 4 = 84/324 - Add the two like fractions:
225/324 + 84/324 = 225 + 84/324 = 309/324 - 309/324 simplified gives 103/108
- So, 25/36 + 21/81 = 103/108
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