Add 36/21 and 4/36, Solve 1 15/21 + 4/36 as a fraction

Add 36/21 and 4/36

1^st number: 1 15/21, 2^nd number: 4/36

36/21 + 4/36 is 115/63.

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

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 21 × 12 = 252,
36/21 = 36 × 12/21 × 12 = 432/252
Likewise, for the 2nd fraction, since 36 × 7 = 252,
4/36 = 4 × 7/36 × 7 = 28/252
Add the two like fractions:
432/252 + 28/252 = 432 + 28/252 = 460/252
460/252 simplified gives 115/63
So, 36/21 + 4/36 = 115/63
In mixed form: 152/63

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