Add 81/10 and 5/84, Solve 8 1/10 + 5/84 as a fraction

Add 81/10 and 5/84

1^st number: 8 1/10, 2^nd number: 5/84

81/10 + 5/84 is 3427/420.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 10 × 42 = 420,
81/10 = 81 × 42/10 × 42 = 3402/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
5/84 = 5 × 5/84 × 5 = 25/420
Add the two like fractions:
3402/420 + 25/420 = 3402 + 25/420 = 3427/420
So, 81/10 + 5/84 = 3427/420
In mixed form: 867/420

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