Add 1/21 and 21/81, Solve 1/21 + 21/81 as a fraction

Add 1/21 and 21/81

1/21 + 21/81 is 58/189.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567

Next, find the equivalent fraction of both fractional numbers with denominator 567
For the 1st fraction, since 21 × 27 = 567,
1/21 = 1 × 27/21 × 27 = 27/567
Likewise, for the 2nd fraction, since 81 × 7 = 567,
21/81 = 21 × 7/81 × 7 = 147/567
Add the two like fractions:
27/567 + 147/567 = 27 + 147/567 = 174/567
174/567 simplified gives 58/189
So, 1/21 + 21/81 = 58/189

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