Add 1/81 and 63/42, Solve 1/81 + 1 21/42 as a fraction

Add 1/81 and 63/42

1^st number: 1/81, 2^nd number: 1 21/42

1/81 + 63/42 is 245/162.

Find the least common denominator or LCM of the two denominators:
LCM of 81 and 42 is 1134

Next, find the equivalent fraction of both fractional numbers with denominator 1134
For the 1st fraction, since 81 × 14 = 1134,
1/81 = 1 × 14/81 × 14 = 14/1134
Likewise, for the 2nd fraction, since 42 × 27 = 1134,
63/42 = 63 × 27/42 × 27 = 1701/1134
Add the two like fractions:
14/1134 + 1701/1134 = 14 + 1701/1134 = 1715/1134
1715/1134 simplified gives 245/162
So, 1/81 + 63/42 = 245/162
In mixed form: 183/162

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