Add 4/84 and 28/15, Solve 4/84 + 1 13/15 as a fraction

Add 4/84 and 28/15

1^st number: 4/84, 2^nd number: 1 13/15

4/84 + 28/15 is 67/35.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 84 × 5 = 420,
4/84 = 4 × 5/84 × 5 = 20/420
Likewise, for the 2nd fraction, since 15 × 28 = 420,
28/15 = 28 × 28/15 × 28 = 784/420
Add the two like fractions:
20/420 + 784/420 = 20 + 784/420 = 804/420
804/420 simplified gives 67/35
So, 4/84 + 28/15 = 67/35
In mixed form: 132/35

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