Add 28/15 and 12/7, Solve 1 13/15 + 1 5/7 as a fraction

Add 28/15 and 12/7

1^st number: 1 13/15, 2^nd number: 1 5/7

28/15 + 12/7 is 376/105.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 15 × 7 = 105,
28/15 = 28 × 7/15 × 7 = 196/105
Likewise, for the 2nd fraction, since 7 × 15 = 105,
12/7 = 12 × 15/7 × 15 = 180/105
Add the two like fractions:
196/105 + 180/105 = 196 + 180/105 = 376/105
So, 28/15 + 12/7 = 376/105
In mixed form: 361/105

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