Add 12/10 and 14/21, Solve 1 2/10 + 14/21 as a fraction

Add 12/10 and 14/21

1^st number: 1 2/10, 2^nd number: 14/21

12/10 + 14/21 is 28/15.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
12/10 = 12 × 21/10 × 21 = 252/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210
Add the two like fractions:
252/210 + 140/210 = 252 + 140/210 = 392/210
392/210 simplified gives 28/15
So, 12/10 + 14/21 = 28/15
In mixed form: 113/15

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