Solutions by everydaycalculation.com

1^{st} number: 1 6/21, 2^{nd} number: 1 12/42

2721 + 5442 is 187.

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

LCM of 21 and 42 is**42**

Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,

2721 = 27 × 221 × 2 = 5442 - Likewise, for the 2nd fraction, since 42 × 1 = 42,

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

5442 + 5442 = 54 + 5442 = 10842 - 108/42 simplified gives 187
- So, 27/21 + 54/42 = 18/7

In mixed form: 247

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