Add 21/27 and 56/63, Solve 21/27 + 56/63 as a fraction

Add 21/27 and 56/63

21/27 + 56/63 is 5/3.

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

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 27 × 7 = 189,
21/27 = 21 × 7/27 × 7 = 147/189
Likewise, for the 2nd fraction, since 63 × 3 = 189,
56/63 = 56 × 3/63 × 3 = 168/189
Add the two like fractions:
147/189 + 168/189 = 147 + 168/189 = 315/189
315/189 simplified gives 5/3
So, 21/27 + 56/63 = 5/3
In mixed form: 12/3

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