Add 72/84 and 84/16, Solve 72/84 + 5 4/16 as a fraction

Add 72/84 and 84/16

1^st number: 72/84, 2^nd number: 5 4/16

72/84 + 84/16 is 171/28.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 84 × 4 = 336,
72/84 = 72 × 4/84 × 4 = 288/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
84/16 = 84 × 21/16 × 21 = 1764/336
Add the two like fractions:
288/336 + 1764/336 = 288 + 1764/336 = 2052/336
2052/336 simplified gives 171/28
So, 72/84 + 84/16 = 171/28
In mixed form: 63/28

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