Add 27/21 and 45/27, Solve 1 6/21 + 1 18/27 as a fraction

Add 27/21 and 45/27

1^st number: 1 6/21, 2^nd number: 1 18/27

27/21 + 45/27 is 62/21.

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,
27/21 = 27 × 9/21 × 9 = 243/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
45/27 = 45 × 7/27 × 7 = 315/189
Add the two like fractions:
243/189 + 315/189 = 243 + 315/189 = 558/189
558/189 simplified gives 62/21
So, 27/21 + 45/27 = 62/21
In mixed form: 220/21

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