Add 81/5 and 4/42, Solve 16 1/5 + 4/42 as a fraction

Add 81/5 and 4/42

1^st number: 16 1/5, 2^nd number: 4/42

81/5 + 4/42 is 1711/105.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 5 × 42 = 210,
81/5 = 81 × 42/5 × 42 = 3402/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
4/42 = 4 × 5/42 × 5 = 20/210
Add the two like fractions:
3402/210 + 20/210 = 3402 + 20/210 = 3422/210
3422/210 simplified gives 1711/105
So, 81/5 + 4/42 = 1711/105
In mixed form: 1631/105

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