Solutions by everydaycalculation.com

1^{st} number: 1 12/15, 2^{nd} number: 1 12/42

2715 + 5442 is 10835.

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

LCM of 15 and 42 is**210**

Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,

2715 = 27 × 1415 × 14 = 378210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,

5442 = 54 × 542 × 5 = 270210 - Add the two like fractions:

378210 + 270210 = 378 + 270210 = 648210 - 648/210 simplified gives 10835
- So, 27/15 + 54/42 = 108/35

In mixed form: 3335

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