Solutions by everydaycalculation.com

1^{st} number: 27 0/3, 2^{nd} number: 1 12/42

813 + 5442 is 1987.

- Find the least common denominator or LCM of the two denominators:

LCM of 3 and 42 is**42**

Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,

813 = 81 × 143 × 14 = 113442 - Likewise, for the 2nd fraction, since 42 × 1 = 42,

5442 = 54 × 142 × 1 = 5442 - Add the two like fractions:

113442 + 5442 = 1134 + 5442 = 118842 - 1188/42 simplified gives 1987
- So, 81/3 + 54/42 = 198/7

In mixed form: 2827

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