Add 27/21 and 84/10, Solve 1 6/21 + 8 4/10 as a fraction

Add 27/21 and 84/10

1^st number: 1 6/21, 2^nd number: 8 4/10

27/21 + 84/10 is 339/35.

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,
84/10 = 84 × 21/10 × 21 = 1764/210
Add the two like fractions:
270/210 + 1764/210 = 270 + 1764/210 = 2034/210
2034/210 simplified gives 339/35
So, 27/21 + 84/10 = 339/35
In mixed form: 924/35

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