Solutions by everydaycalculation.com

1542 + 6081 is 415378.

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

LCM of 42 and 81 is**1134**

Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,

1542 = 15 × 2742 × 27 = 4051134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,

6081 = 60 × 1481 × 14 = 8401134 - Add the two like fractions:

4051134 + 8401134 = 405 + 8401134 = 12451134 - 1245/1134 simplified gives 415378
- So, 15/42 + 60/81 = 415/378

In mixed form: 137378

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