Add 20/7 and 9/27, Solve 2 6/7 + 9/27 as a fraction

Add 20/7 and 9/27

1^st number: 2 6/7, 2^nd number: 9/27

20/7 + 9/27 is 67/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 7 × 27 = 189,
20/7 = 20 × 27/7 × 27 = 540/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
9/27 = 9 × 7/27 × 7 = 63/189
Add the two like fractions:
540/189 + 63/189 = 540 + 63/189 = 603/189
603/189 simplified gives 67/21
So, 20/7 + 9/27 = 67/21
In mixed form: 34/21

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