Add 72/12 and 9/84, Solve 6 0/12 + 9/84 as a fraction

Add 72/12 and 9/84

1^st number: 6 0/12, 2^nd number: 9/84

72/12 + 9/84 is 171/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
72/12 = 72 × 7/12 × 7 = 504/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
9/84 = 9 × 1/84 × 1 = 9/84
Add the two like fractions:
504/84 + 9/84 = 504 + 9/84 = 513/84
513/84 simplified gives 171/28
So, 72/12 + 9/84 = 171/28
In mixed form: 63/28

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