Add 27/15 and 10/21, Solve 1 12/15 + 10/21 as a fraction

Add 27/15 and 10/21

1^st number: 1 12/15, 2^nd number: 10/21

27/15 + 10/21 is 239/105.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 15 × 7 = 105,
27/15 = 27 × 7/15 × 7 = 189/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
10/21 = 10 × 5/21 × 5 = 50/105
Add the two like fractions:
189/105 + 50/105 = 189 + 50/105 = 239/105
So, 27/15 + 10/21 = 239/105
In mixed form: 229/105

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