Add 84/72 and 75/54, Solve 1 12/72 + 1 21/54 as a fraction

Add 84/72 and 75/54

1^st number: 1 12/72, 2^nd number: 1 21/54

84/72 + 75/54 is 23/9.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216

Next, find the equivalent fraction of both fractional numbers with denominator 216
For the 1st fraction, since 72 × 3 = 216,
84/72 = 84 × 3/72 × 3 = 252/216
Likewise, for the 2nd fraction, since 54 × 4 = 216,
75/54 = 75 × 4/54 × 4 = 300/216
Add the two like fractions:
252/216 + 300/216 = 252 + 300/216 = 552/216
552/216 simplified gives 23/9
So, 84/72 + 75/54 = 23/9
In mixed form: 25/9

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