Add 9/21 and 15/10, Solve 9/21 + 1 5/10 as a fraction

Add 9/21 and 15/10

1^st number: 9/21, 2^nd number: 1 5/10

9/21 + 15/10 is 27/14.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
9/21 = 9 × 10/21 × 10 = 90/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
15/10 = 15 × 21/10 × 21 = 315/210
Add the two like fractions:
90/210 + 315/210 = 90 + 315/210 = 405/210
405/210 simplified gives 27/14
So, 9/21 + 15/10 = 27/14
In mixed form: 113/14

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