Add 25/16 and 4/81, Solve 1 9/16 + 4/81 as a fraction

Add 25/16 and 4/81

1^st number: 1 9/16, 2^nd number: 4/81

25/16 + 4/81 is 2089/1296.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296

Next, find the equivalent fraction of both fractional numbers with denominator 1296
For the 1st fraction, since 16 × 81 = 1296,
25/16 = 25 × 81/16 × 81 = 2025/1296
Likewise, for the 2nd fraction, since 81 × 16 = 1296,
4/81 = 4 × 16/81 × 16 = 64/1296
Add the two like fractions:
2025/1296 + 64/1296 = 2025 + 64/1296 = 2089/1296
So, 25/16 + 4/81 = 2089/1296
In mixed form: 1793/1296

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