Add 28/15 and 3/84, Solve 1 13/15 + 3/84 as a fraction

Add 28/15 and 3/84

1^st number: 1 13/15, 2^nd number: 3/84

28/15 + 3/84 is 799/420.

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

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
28/15 = 28 × 28/15 × 28 = 784/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420
Add the two like fractions:
784/420 + 15/420 = 784 + 15/420 = 799/420
So, 28/15 + 3/84 = 799/420
In mixed form: 1379/420

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