Add 84/63 and 30/27, Solve 1 21/63 + 1 3/27 as a fraction

Add 84/63 and 30/27

1^st number: 1 21/63, 2^nd number: 1 3/27

84/63 + 30/27 is 22/9.

Find the least common denominator or LCM of the two denominators:
LCM of 63 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 63 × 3 = 189,
84/63 = 84 × 3/63 × 3 = 252/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
30/27 = 30 × 7/27 × 7 = 210/189
Add the two like fractions:
252/189 + 210/189 = 252 + 210/189 = 462/189
462/189 simplified gives 22/9
So, 84/63 + 30/27 = 22/9
In mixed form: 24/9

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