Add 72/21 and 35/27, Solve 3 9/21 + 1 8/27 as a fraction

Add 72/21 and 35/27

1^st number: 3 9/21, 2^nd number: 1 8/27

72/21 + 35/27 is 893/189.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 21 × 9 = 189,
72/21 = 72 × 9/21 × 9 = 648/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
35/27 = 35 × 7/27 × 7 = 245/189
Add the two like fractions:
648/189 + 245/189 = 648 + 245/189 = 893/189
So, 72/21 + 35/27 = 893/189
In mixed form: 4137/189

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