Add 28/15 and 36/42, Solve 1 13/15 + 36/42 as a fraction

Add 28/15 and 36/42

1^st number: 1 13/15, 2^nd number: 36/42

28/15 + 36/42 is 286/105.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 15 × 14 = 210,
28/15 = 28 × 14/15 × 14 = 392/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
36/42 = 36 × 5/42 × 5 = 180/210
Add the two like fractions:
392/210 + 180/210 = 392 + 180/210 = 572/210
572/210 simplified gives 286/105
So, 28/15 + 36/42 = 286/105
In mixed form: 276/105

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