Add 81/14 and 15/42, Solve 5 11/14 + 15/42 as a fraction

Add 81/14 and 15/42

1^st number: 5 11/14, 2^nd number: 15/42

81/14 + 15/42 is 43/7.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 14 × 3 = 42,
81/14 = 81 × 3/14 × 3 = 243/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
15/42 = 15 × 1/42 × 1 = 15/42
Add the two like fractions:
243/42 + 15/42 = 243 + 15/42 = 258/42
258/42 simplified gives 43/7
So, 81/14 + 15/42 = 43/7
In mixed form: 61/7

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