Add 27/21 and 15/10, Solve 1 6/21 + 1 5/10 as a fraction

Add 27/21 and 15/10

1^st number: 1 6/21, 2^nd number: 1 5/10

27/21 + 15/10 is 39/14.

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,
27/21 = 27 × 10/21 × 10 = 270/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
15/10 = 15 × 21/10 × 21 = 315/210
Add the two like fractions:
270/210 + 315/210 = 270 + 315/210 = 585/210
585/210 simplified gives 39/14
So, 27/21 + 15/10 = 39/14
In mixed form: 211/14

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