Add 25/21 and 12/81, Solve 1 4/21 + 12/81 as a fraction

Add 25/21 and 12/81

1^st number: 1 4/21, 2^nd number: 12/81

25/21 + 12/81 is 253/189.

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,
25/21 = 25 × 27/21 × 27 = 675/567
Likewise, for the 2nd fraction, since 81 × 7 = 567,
12/81 = 12 × 7/81 × 7 = 84/567
Add the two like fractions:
675/567 + 84/567 = 675 + 84/567 = 759/567
759/567 simplified gives 253/189
So, 25/21 + 12/81 = 253/189
In mixed form: 164/189

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