Add 54/36 and 8/21, Solve 1 18/36 + 8/21 as a fraction

Add 54/36 and 8/21

1^st number: 1 18/36, 2^nd number: 8/21

54/36 + 8/21 is 79/42.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 36 × 7 = 252,
54/36 = 54 × 7/36 × 7 = 378/252
Likewise, for the 2nd fraction, since 21 × 12 = 252,
8/21 = 8 × 12/21 × 12 = 96/252
Add the two like fractions:
378/252 + 96/252 = 378 + 96/252 = 474/252
474/252 simplified gives 79/42
So, 54/36 + 8/21 = 79/42
In mixed form: 137/42

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