Add 81/2 and 35/42, Solve 40 1/2 + 35/42 as a fraction

Add 81/2 and 35/42

1^st number: 40 1/2, 2^nd number: 35/42

81/2 + 35/42 is 124/3.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 2 × 21 = 42,
81/2 = 81 × 21/2 × 21 = 1701/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
35/42 = 35 × 1/42 × 1 = 35/42
Add the two like fractions:
1701/42 + 35/42 = 1701 + 35/42 = 1736/42
1736/42 simplified gives 124/3
So, 81/2 + 35/42 = 124/3
In mixed form: 411/3

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