Add 36/12 and 21/72, Solve 3 0/12 + 21/72 as a fraction

Add 36/12 and 21/72

1^st number: 3 0/12, 2^nd number: 21/72

36/12 + 21/72 is 79/24.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 12 × 6 = 72,
36/12 = 36 × 6/12 × 6 = 216/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72
Add the two like fractions:
216/72 + 21/72 = 216 + 21/72 = 237/72
237/72 simplified gives 79/24
So, 36/12 + 21/72 = 79/24
In mixed form: 37/24

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