Add 72/28 and 12/9, Solve 2 16/28 + 1 3/9 as a fraction

Add 72/28 and 12/9

1^st number: 2 16/28, 2^nd number: 1 3/9

72/28 + 12/9 is 82/21.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 28 × 9 = 252,
72/28 = 72 × 9/28 × 9 = 648/252
Likewise, for the 2nd fraction, since 9 × 28 = 252,
12/9 = 12 × 28/9 × 28 = 336/252
Add the two like fractions:
648/252 + 336/252 = 648 + 336/252 = 984/252
984/252 simplified gives 82/21
So, 72/28 + 12/9 = 82/21
In mixed form: 319/21

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