Add 81/2 and 15/84, Solve 40 1/2 + 15/84 as a fraction

Add 81/2 and 15/84

1^st number: 40 1/2, 2^nd number: 15/84

81/2 + 15/84 is 1139/28.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 2 × 42 = 84,
81/2 = 81 × 42/2 × 42 = 3402/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
15/84 = 15 × 1/84 × 1 = 15/84
Add the two like fractions:
3402/84 + 15/84 = 3402 + 15/84 = 3417/84
3417/84 simplified gives 1139/28
So, 81/2 + 15/84 = 1139/28
In mixed form: 4019/28

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