Add 81/5 and 9/42, Solve 16 1/5 + 9/42 as a fraction

Add 81/5 and 9/42

1^st number: 16 1/5, 2^nd number: 9/42

81/5 + 9/42 is 1149/70.

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,
9/42 = 9 × 5/42 × 5 = 45/210
Add the two like fractions:
3402/210 + 45/210 = 3402 + 45/210 = 3447/210
3447/210 simplified gives 1149/70
So, 81/5 + 9/42 = 1149/70
In mixed form: 1629/70

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