Add 84/15 and 12/75, Solve 5 9/15 + 12/75 as a fraction

Add 84/15 and 12/75

1^st number: 5 9/15, 2^nd number: 12/75

84/15 + 12/75 is 144/25.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 75 is 75

Next, find the equivalent fraction of both fractional numbers with denominator 75
For the 1st fraction, since 15 × 5 = 75,
84/15 = 84 × 5/15 × 5 = 420/75
Likewise, for the 2nd fraction, since 75 × 1 = 75,
12/75 = 12 × 1/75 × 1 = 12/75
Add the two like fractions:
420/75 + 12/75 = 420 + 12/75 = 432/75
432/75 simplified gives 144/25
So, 84/15 + 12/75 = 144/25
In mixed form: 519/25

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